COSY-Experiments: A general overview and selected...
Transcript of COSY-Experiments: A general overview and selected...
Mit
glie
d d
er
Helm
holt
z-G
em
ein
schaft
COSY-Experiments
A general overview and selected results
February 11 2014 | Michael Hartmann (FZ Juumllich)
Feb 11 2014 | M Hartmann J-PARC workshop 2
Content
Physics program
(ANKE PAX TOF WASA)
Preparatory work for FAIR
(HESR and PANDA CBM NUSTAR hellip)
Future plans
(EDM)
Feb 11 2014 | M Hartmann J-PARC workshop 3
COSY ANKE
TOF
PAX
EDDApolarimeter WASA
COSY Overview
hellip the machine for hadron spin physics
Circumference 183 m max beam momentum 37 GeVc
Polarized proton and deuteron beams
Electron and stochastic cooling
Feb 11 2014 | M Hartmann J-PARC workshop 4
WASA ABC structure
Isospin decomposition of ABC resonance structurePhys Lett B 721 (2013) 229rarr pure isoscalar effect If resonance in np systemrarr effect should be present in np scattering
Most sensitive observable in np scatteringanalyzing power Ay and its energy dependence near θCM asymp 90deg
First resultcorresponding signalat resonance position
θCM asymp 90deg
isovector+
isoscalar
isoscalar
isovector
WASA
WASA
WASA
WASASAID
np rarr nprarr
Further analysisneeded
Feb 11 2014 | M Hartmann J-PARC workshop 5
WASA CSB in dd rarr 4He π0
Probing hadronic effects of the u- and d-quark mass difference
Charge Symmetry u harr d subgroup of Isospin Symmetryinsensitive to charge difference
dd rarr 4He π0 CS σ = 0 CS σ ~ |MCSB|2 ne 0
Stephenson et al σtot(Q = 14 MeV) = 127 plusmn 22 pb(PRL 91 (2003) 142302) σtot(Q = 30 MeV) = 151 plusmn 31 pb
rarr consistent with s-wave π-production
Contribution of p-wave at higher energies (Q = 60 MeV)
Experimental 3He4He separationchallenges σtot(3He n π0) asymp 3∙104 σtot(4He π0)
Pilot run σtot prelim = (118 plusmn 18stat plusmn 13sys plusmn 8norm) pbfirst differential cross section
dd rarr 4He γγ
+ dd rarr 3He n π0
+ dd rarr 4He π0
theoretical analysis amp prediction
rarr more precise data needed 8 week production run with optimized setup (FebMar 2014)
Feb 11 2014 | M Hartmann J-PARC workshop 6
TOF Hyperon production
Separation of singlet and triplet scattering length
(see eg EPJA 49 (2013)157 PLB 688 (2010) 142
Feb 11 2014 | M Hartmann J-PARC workshop 7
Recent precision data (pp elastic scattering Ay)
ANKE ANKEEDDA EDDAAy Ay
EDDA ANKE NN-scattering
fast proton (FD) slow proton (STT)
prelim
inar
y
great impact on NN phase shifts (SAID group)fundamental quantities for nuclear physics
Ongoing double polarized measurements (np system)
Feb 11 2014 | M Hartmann J-PARC workshop 8
ANKE Double-polarized experiments
Double-polarized experiments approved
ABS Openable storage cell(luminosity factor 5 more)
(i) p n n p (AI AIJ)
(ii) p n pps (Axz parameter)
(iii) p p K+ p (CYY coefficient)
down to 10 mm diameter about 85 polarization
httpcollaborationsfz-juelichdeikpankeproposalsshtml
Feb 11 2014 | M Hartmann J-PARC workshop 9
COSY KKΦ pro- duction (ANKE )
(wwwfz-juelichdeikp orMH PoS 057 (2011))
DISTO
COSYKK amp Φ production in pp pd amp dd (world data)
Feb 11 2014 | M Hartmann J-PARC workshop 10
ANKE pprarrppKK at = 51 MeV
Assumption Kp FSI effect
f(q) = 1(1-iaq) q relative momentum
a scattering length
ldquo3-body-FSIrdquo harr f(q1) f(q
2)
|a| asymp 15 fm
p
p
KK
Y Maeda etal PRC 77 (2008) 015204
strong Kp andor Kpp FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 11
ANKE ppKK production at εKK= 108 MeV
ldquooutside Φrdquo
no acceptance correction
M (K minus pp)
M (K + pp)F=F pp(q pp) times
F K p (q K p1)times
F K p(qK p 2)times
F K K (qK K )
QJ Ye etal PRC 85
(2012) 035211
|a| asymp 15 fm
Feb 11 2014 | M Hartmann J-PARC workshop 12
ratio of exp KK inv mass to MC (without KK interaction)
KK production amplitudes (I=01)
pp rarr ppKK (total cross section)
pp KK Kp-FSIphase space
COSY-11 COSY-ANKE
24 MeV 51 amp 108 MeV
Y Maeda etal PRC 77 (2008) 015204
A Dzyuba etal PLB 668 (2008) 315
M Silarski etal PRC 80 (2009) 045202 88 (2013) 025205
QJ Ye etal PRC 85 (2012) 035211
DISTO
|B1B0|2 = 03 effective aKminusp=15i fm
aKminusp=245i fm
ANKE
QJ Ye etal PRC 87 (2013) 065203
Feb 11 2014 | M Hartmann J-PARC workshop 13
ANKE pprarrdKK
A Dzyuba etal EPJ A 38 (2008) 1
dK FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 14
ANKE pnrarrdKK
42 MeV lt lt 52 MeV 12 MeV lt lt 22 MeV
Y Maeda etal PRC 79 (2009) 018201
dK FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 15
pp rarr ppKKndash
pp rarr dKK
pn rarr dKKndash
pd rarr 3HeKKndash
dd rarr 4HeKKndash - COSY ANKE COSY-11 MOMO - DISTO
tota
l cro
ss s
ectio
n n
b
pd rarr 3He a0(980) WASA-COSY
BR90 weak signal (~1nb =256 MeV preliminary)
KK BR10 a0 f0
EPJ A 42 (2009) 1
PRC 75 (2007) 015204
Chuan Zheng PhD INP
Proton amp deuteron induced KK production (world data)
Feb 11 2014 | M Hartmann J-PARC workshop 16
ANKE ppppФ total cross sections
ANKE DISTO
only tot
76 MeV (new)
ldquoSsrdquo + pp-FSI
DISTOhigher PWno pp-FSI
Feb 11 2014 | M Hartmann J-PARC workshop 17
ANKE ppppФ (differential cross sections) at εΦ= 185 MeV
close to threshold the angular decay
distribution must display a sin2θΦK+
_____________________________
Φ in relative S-wave
transition from 3P1 (pp)-entrance channel to 1S0 (pp) final-state
clear effect of pp-FSI
MH etal PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 18
ANKE ppppФ production at εΦ= 76 MeV
ldquoinside Φrdquo
no acceptance correction
spin-averaged squared transition matrix element
multiplied by pp-FSI (Jost function)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 19
hellip and final differential distributions at 76 MeV
angular distributions (symmetric about cos θ = 0)
polar decay angle
ANKE DISTO (83 MeV)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 20
hellip and final differential distributions at 76 MeV
185 MeV (for comparison)
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 21
hellip and ppФ total cross section dilemma
full
Ps
Pp
SpSs
76 MeV
Simplest way out A Φp threshold enhancement leads to a significant energy dependence of some of the AL l coefficients
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 22
ANKE pndФ (differential amp total cross sections)
Y Maeda etal PRL 97 (2006) 142301
pn d
pp pp
ddK+ = 3(a∙sin2
K++2b∙cos2K+)8 tot = a+b
Feb 11 2014 | M Hartmann J-PARC workshop 23
ANKE Φ(rarrKK) production in pA - Φ-width measurement
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
SPring-8 photo-production later also by CLAS
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the Φ production in the following form
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
experiment at ANKE
Feb 11 2014 | M Hartmann J-PARC workshop 24
Ф KK selection
all
delayed
all K
KK
Feb 11 2014 | M Hartmann J-PARC workshop 25
Transparency ratios experiment and models
VMagas et al PRC 71 (2005) 065202LRoca (private communication)
ValenciaEOset et alMC amp Chiral Unitary Approach
EParyev JPhys G 36 (2009) 015103
MoscowEParyevNuclear Spectral Function Approach
HSchade BKaumlmpfer (private communication) cf PRC 81 (2010) 034902
RossendorfBKaumlmpfer et alBUU
Relevant features for models
forward acceptance
two-step production processes
σpnrarrpnΦ
σpprarrppΦ
asymp 4
MH etal PRC 85 (2012) 035206
Feb 11 2014 | M Hartmann J-PARC workshop 26
In-medium width ΓΦ and σ
ΦN cross section
ΓΦlab
(ρ0)=pΦ
EσΦ N
ρ0LDA
Model dependent analysis of the ANKE data
MoscowPParyevRossendorfBKaempfer etalValenciaEOset et al
MH etal PRC 85 (2012) 035206
cf A Polyanskiy etal PLB 695 (2011) 74 () MH etal EPJ Web Conf 36 (2012) 00011
()
Feb 11 2014 | M Hartmann J-PARC workshop 27
Double differential cross section of Φ production
+ common systematics ~ 20
ANKEBUUNSP appr
MH etal PRC 85 035206 (2012)
Feb 11 2014 | M Hartmann J-PARC workshop 28
ANKE (non-Φ) KK production in pA - first lookpreliminary
C All (K+) Au All (K+)
go to ratios
prelim
inar
y
02 lt p(K+) lt 06 GeVc θ(K+Kndash) lt 12deg IM(K+Kndash) lt 1005 GeV
model calculation (NSP appr E Paryev) absorption from KN scatt data
U(Kndash) = -180
-126
-60
0 MeV
U(Kndash) = -180
-126
-60
0 MeV
Feb 11 2014 | M Hartmann J-PARC workshop 29
ANKE (non-Φ) KK production in pA - first lookpreliminary
Underway calculations from
Valencia group (Eulogio Oset)
Angels Ramos amp Luis Roca
AuC CuC CC
U(Kndash) = 0
-60
-126
-180 MeV
preliminary
Feb 11 2014 | M Hartmann J-PARC workshop 30
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
W Augustyniak etal PLB 718 (2012) 64
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 31
W Augustyniak etal PLB 718 (2012) 64
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
Preparation for longitudinal polarization build-up at COSY and PAX-at-CERNAD
Siberian Snake
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 2
Content
Physics program
(ANKE PAX TOF WASA)
Preparatory work for FAIR
(HESR and PANDA CBM NUSTAR hellip)
Future plans
(EDM)
Feb 11 2014 | M Hartmann J-PARC workshop 3
COSY ANKE
TOF
PAX
EDDApolarimeter WASA
COSY Overview
hellip the machine for hadron spin physics
Circumference 183 m max beam momentum 37 GeVc
Polarized proton and deuteron beams
Electron and stochastic cooling
Feb 11 2014 | M Hartmann J-PARC workshop 4
WASA ABC structure
Isospin decomposition of ABC resonance structurePhys Lett B 721 (2013) 229rarr pure isoscalar effect If resonance in np systemrarr effect should be present in np scattering
Most sensitive observable in np scatteringanalyzing power Ay and its energy dependence near θCM asymp 90deg
First resultcorresponding signalat resonance position
θCM asymp 90deg
isovector+
isoscalar
isoscalar
isovector
WASA
WASA
WASA
WASASAID
np rarr nprarr
Further analysisneeded
Feb 11 2014 | M Hartmann J-PARC workshop 5
WASA CSB in dd rarr 4He π0
Probing hadronic effects of the u- and d-quark mass difference
Charge Symmetry u harr d subgroup of Isospin Symmetryinsensitive to charge difference
dd rarr 4He π0 CS σ = 0 CS σ ~ |MCSB|2 ne 0
Stephenson et al σtot(Q = 14 MeV) = 127 plusmn 22 pb(PRL 91 (2003) 142302) σtot(Q = 30 MeV) = 151 plusmn 31 pb
rarr consistent with s-wave π-production
Contribution of p-wave at higher energies (Q = 60 MeV)
Experimental 3He4He separationchallenges σtot(3He n π0) asymp 3∙104 σtot(4He π0)
Pilot run σtot prelim = (118 plusmn 18stat plusmn 13sys plusmn 8norm) pbfirst differential cross section
dd rarr 4He γγ
+ dd rarr 3He n π0
+ dd rarr 4He π0
theoretical analysis amp prediction
rarr more precise data needed 8 week production run with optimized setup (FebMar 2014)
Feb 11 2014 | M Hartmann J-PARC workshop 6
TOF Hyperon production
Separation of singlet and triplet scattering length
(see eg EPJA 49 (2013)157 PLB 688 (2010) 142
Feb 11 2014 | M Hartmann J-PARC workshop 7
Recent precision data (pp elastic scattering Ay)
ANKE ANKEEDDA EDDAAy Ay
EDDA ANKE NN-scattering
fast proton (FD) slow proton (STT)
prelim
inar
y
great impact on NN phase shifts (SAID group)fundamental quantities for nuclear physics
Ongoing double polarized measurements (np system)
Feb 11 2014 | M Hartmann J-PARC workshop 8
ANKE Double-polarized experiments
Double-polarized experiments approved
ABS Openable storage cell(luminosity factor 5 more)
(i) p n n p (AI AIJ)
(ii) p n pps (Axz parameter)
(iii) p p K+ p (CYY coefficient)
down to 10 mm diameter about 85 polarization
httpcollaborationsfz-juelichdeikpankeproposalsshtml
Feb 11 2014 | M Hartmann J-PARC workshop 9
COSY KKΦ pro- duction (ANKE )
(wwwfz-juelichdeikp orMH PoS 057 (2011))
DISTO
COSYKK amp Φ production in pp pd amp dd (world data)
Feb 11 2014 | M Hartmann J-PARC workshop 10
ANKE pprarrppKK at = 51 MeV
Assumption Kp FSI effect
f(q) = 1(1-iaq) q relative momentum
a scattering length
ldquo3-body-FSIrdquo harr f(q1) f(q
2)
|a| asymp 15 fm
p
p
KK
Y Maeda etal PRC 77 (2008) 015204
strong Kp andor Kpp FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 11
ANKE ppKK production at εKK= 108 MeV
ldquooutside Φrdquo
no acceptance correction
M (K minus pp)
M (K + pp)F=F pp(q pp) times
F K p (q K p1)times
F K p(qK p 2)times
F K K (qK K )
QJ Ye etal PRC 85
(2012) 035211
|a| asymp 15 fm
Feb 11 2014 | M Hartmann J-PARC workshop 12
ratio of exp KK inv mass to MC (without KK interaction)
KK production amplitudes (I=01)
pp rarr ppKK (total cross section)
pp KK Kp-FSIphase space
COSY-11 COSY-ANKE
24 MeV 51 amp 108 MeV
Y Maeda etal PRC 77 (2008) 015204
A Dzyuba etal PLB 668 (2008) 315
M Silarski etal PRC 80 (2009) 045202 88 (2013) 025205
QJ Ye etal PRC 85 (2012) 035211
DISTO
|B1B0|2 = 03 effective aKminusp=15i fm
aKminusp=245i fm
ANKE
QJ Ye etal PRC 87 (2013) 065203
Feb 11 2014 | M Hartmann J-PARC workshop 13
ANKE pprarrdKK
A Dzyuba etal EPJ A 38 (2008) 1
dK FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 14
ANKE pnrarrdKK
42 MeV lt lt 52 MeV 12 MeV lt lt 22 MeV
Y Maeda etal PRC 79 (2009) 018201
dK FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 15
pp rarr ppKKndash
pp rarr dKK
pn rarr dKKndash
pd rarr 3HeKKndash
dd rarr 4HeKKndash - COSY ANKE COSY-11 MOMO - DISTO
tota
l cro
ss s
ectio
n n
b
pd rarr 3He a0(980) WASA-COSY
BR90 weak signal (~1nb =256 MeV preliminary)
KK BR10 a0 f0
EPJ A 42 (2009) 1
PRC 75 (2007) 015204
Chuan Zheng PhD INP
Proton amp deuteron induced KK production (world data)
Feb 11 2014 | M Hartmann J-PARC workshop 16
ANKE ppppФ total cross sections
ANKE DISTO
only tot
76 MeV (new)
ldquoSsrdquo + pp-FSI
DISTOhigher PWno pp-FSI
Feb 11 2014 | M Hartmann J-PARC workshop 17
ANKE ppppФ (differential cross sections) at εΦ= 185 MeV
close to threshold the angular decay
distribution must display a sin2θΦK+
_____________________________
Φ in relative S-wave
transition from 3P1 (pp)-entrance channel to 1S0 (pp) final-state
clear effect of pp-FSI
MH etal PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 18
ANKE ppppФ production at εΦ= 76 MeV
ldquoinside Φrdquo
no acceptance correction
spin-averaged squared transition matrix element
multiplied by pp-FSI (Jost function)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 19
hellip and final differential distributions at 76 MeV
angular distributions (symmetric about cos θ = 0)
polar decay angle
ANKE DISTO (83 MeV)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 20
hellip and final differential distributions at 76 MeV
185 MeV (for comparison)
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 21
hellip and ppФ total cross section dilemma
full
Ps
Pp
SpSs
76 MeV
Simplest way out A Φp threshold enhancement leads to a significant energy dependence of some of the AL l coefficients
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 22
ANKE pndФ (differential amp total cross sections)
Y Maeda etal PRL 97 (2006) 142301
pn d
pp pp
ddK+ = 3(a∙sin2
K++2b∙cos2K+)8 tot = a+b
Feb 11 2014 | M Hartmann J-PARC workshop 23
ANKE Φ(rarrKK) production in pA - Φ-width measurement
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
SPring-8 photo-production later also by CLAS
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the Φ production in the following form
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
experiment at ANKE
Feb 11 2014 | M Hartmann J-PARC workshop 24
Ф KK selection
all
delayed
all K
KK
Feb 11 2014 | M Hartmann J-PARC workshop 25
Transparency ratios experiment and models
VMagas et al PRC 71 (2005) 065202LRoca (private communication)
ValenciaEOset et alMC amp Chiral Unitary Approach
EParyev JPhys G 36 (2009) 015103
MoscowEParyevNuclear Spectral Function Approach
HSchade BKaumlmpfer (private communication) cf PRC 81 (2010) 034902
RossendorfBKaumlmpfer et alBUU
Relevant features for models
forward acceptance
two-step production processes
σpnrarrpnΦ
σpprarrppΦ
asymp 4
MH etal PRC 85 (2012) 035206
Feb 11 2014 | M Hartmann J-PARC workshop 26
In-medium width ΓΦ and σ
ΦN cross section
ΓΦlab
(ρ0)=pΦ
EσΦ N
ρ0LDA
Model dependent analysis of the ANKE data
MoscowPParyevRossendorfBKaempfer etalValenciaEOset et al
MH etal PRC 85 (2012) 035206
cf A Polyanskiy etal PLB 695 (2011) 74 () MH etal EPJ Web Conf 36 (2012) 00011
()
Feb 11 2014 | M Hartmann J-PARC workshop 27
Double differential cross section of Φ production
+ common systematics ~ 20
ANKEBUUNSP appr
MH etal PRC 85 035206 (2012)
Feb 11 2014 | M Hartmann J-PARC workshop 28
ANKE (non-Φ) KK production in pA - first lookpreliminary
C All (K+) Au All (K+)
go to ratios
prelim
inar
y
02 lt p(K+) lt 06 GeVc θ(K+Kndash) lt 12deg IM(K+Kndash) lt 1005 GeV
model calculation (NSP appr E Paryev) absorption from KN scatt data
U(Kndash) = -180
-126
-60
0 MeV
U(Kndash) = -180
-126
-60
0 MeV
Feb 11 2014 | M Hartmann J-PARC workshop 29
ANKE (non-Φ) KK production in pA - first lookpreliminary
Underway calculations from
Valencia group (Eulogio Oset)
Angels Ramos amp Luis Roca
AuC CuC CC
U(Kndash) = 0
-60
-126
-180 MeV
preliminary
Feb 11 2014 | M Hartmann J-PARC workshop 30
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
W Augustyniak etal PLB 718 (2012) 64
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 31
W Augustyniak etal PLB 718 (2012) 64
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
Preparation for longitudinal polarization build-up at COSY and PAX-at-CERNAD
Siberian Snake
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 3
COSY ANKE
TOF
PAX
EDDApolarimeter WASA
COSY Overview
hellip the machine for hadron spin physics
Circumference 183 m max beam momentum 37 GeVc
Polarized proton and deuteron beams
Electron and stochastic cooling
Feb 11 2014 | M Hartmann J-PARC workshop 4
WASA ABC structure
Isospin decomposition of ABC resonance structurePhys Lett B 721 (2013) 229rarr pure isoscalar effect If resonance in np systemrarr effect should be present in np scattering
Most sensitive observable in np scatteringanalyzing power Ay and its energy dependence near θCM asymp 90deg
First resultcorresponding signalat resonance position
θCM asymp 90deg
isovector+
isoscalar
isoscalar
isovector
WASA
WASA
WASA
WASASAID
np rarr nprarr
Further analysisneeded
Feb 11 2014 | M Hartmann J-PARC workshop 5
WASA CSB in dd rarr 4He π0
Probing hadronic effects of the u- and d-quark mass difference
Charge Symmetry u harr d subgroup of Isospin Symmetryinsensitive to charge difference
dd rarr 4He π0 CS σ = 0 CS σ ~ |MCSB|2 ne 0
Stephenson et al σtot(Q = 14 MeV) = 127 plusmn 22 pb(PRL 91 (2003) 142302) σtot(Q = 30 MeV) = 151 plusmn 31 pb
rarr consistent with s-wave π-production
Contribution of p-wave at higher energies (Q = 60 MeV)
Experimental 3He4He separationchallenges σtot(3He n π0) asymp 3∙104 σtot(4He π0)
Pilot run σtot prelim = (118 plusmn 18stat plusmn 13sys plusmn 8norm) pbfirst differential cross section
dd rarr 4He γγ
+ dd rarr 3He n π0
+ dd rarr 4He π0
theoretical analysis amp prediction
rarr more precise data needed 8 week production run with optimized setup (FebMar 2014)
Feb 11 2014 | M Hartmann J-PARC workshop 6
TOF Hyperon production
Separation of singlet and triplet scattering length
(see eg EPJA 49 (2013)157 PLB 688 (2010) 142
Feb 11 2014 | M Hartmann J-PARC workshop 7
Recent precision data (pp elastic scattering Ay)
ANKE ANKEEDDA EDDAAy Ay
EDDA ANKE NN-scattering
fast proton (FD) slow proton (STT)
prelim
inar
y
great impact on NN phase shifts (SAID group)fundamental quantities for nuclear physics
Ongoing double polarized measurements (np system)
Feb 11 2014 | M Hartmann J-PARC workshop 8
ANKE Double-polarized experiments
Double-polarized experiments approved
ABS Openable storage cell(luminosity factor 5 more)
(i) p n n p (AI AIJ)
(ii) p n pps (Axz parameter)
(iii) p p K+ p (CYY coefficient)
down to 10 mm diameter about 85 polarization
httpcollaborationsfz-juelichdeikpankeproposalsshtml
Feb 11 2014 | M Hartmann J-PARC workshop 9
COSY KKΦ pro- duction (ANKE )
(wwwfz-juelichdeikp orMH PoS 057 (2011))
DISTO
COSYKK amp Φ production in pp pd amp dd (world data)
Feb 11 2014 | M Hartmann J-PARC workshop 10
ANKE pprarrppKK at = 51 MeV
Assumption Kp FSI effect
f(q) = 1(1-iaq) q relative momentum
a scattering length
ldquo3-body-FSIrdquo harr f(q1) f(q
2)
|a| asymp 15 fm
p
p
KK
Y Maeda etal PRC 77 (2008) 015204
strong Kp andor Kpp FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 11
ANKE ppKK production at εKK= 108 MeV
ldquooutside Φrdquo
no acceptance correction
M (K minus pp)
M (K + pp)F=F pp(q pp) times
F K p (q K p1)times
F K p(qK p 2)times
F K K (qK K )
QJ Ye etal PRC 85
(2012) 035211
|a| asymp 15 fm
Feb 11 2014 | M Hartmann J-PARC workshop 12
ratio of exp KK inv mass to MC (without KK interaction)
KK production amplitudes (I=01)
pp rarr ppKK (total cross section)
pp KK Kp-FSIphase space
COSY-11 COSY-ANKE
24 MeV 51 amp 108 MeV
Y Maeda etal PRC 77 (2008) 015204
A Dzyuba etal PLB 668 (2008) 315
M Silarski etal PRC 80 (2009) 045202 88 (2013) 025205
QJ Ye etal PRC 85 (2012) 035211
DISTO
|B1B0|2 = 03 effective aKminusp=15i fm
aKminusp=245i fm
ANKE
QJ Ye etal PRC 87 (2013) 065203
Feb 11 2014 | M Hartmann J-PARC workshop 13
ANKE pprarrdKK
A Dzyuba etal EPJ A 38 (2008) 1
dK FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 14
ANKE pnrarrdKK
42 MeV lt lt 52 MeV 12 MeV lt lt 22 MeV
Y Maeda etal PRC 79 (2009) 018201
dK FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 15
pp rarr ppKKndash
pp rarr dKK
pn rarr dKKndash
pd rarr 3HeKKndash
dd rarr 4HeKKndash - COSY ANKE COSY-11 MOMO - DISTO
tota
l cro
ss s
ectio
n n
b
pd rarr 3He a0(980) WASA-COSY
BR90 weak signal (~1nb =256 MeV preliminary)
KK BR10 a0 f0
EPJ A 42 (2009) 1
PRC 75 (2007) 015204
Chuan Zheng PhD INP
Proton amp deuteron induced KK production (world data)
Feb 11 2014 | M Hartmann J-PARC workshop 16
ANKE ppppФ total cross sections
ANKE DISTO
only tot
76 MeV (new)
ldquoSsrdquo + pp-FSI
DISTOhigher PWno pp-FSI
Feb 11 2014 | M Hartmann J-PARC workshop 17
ANKE ppppФ (differential cross sections) at εΦ= 185 MeV
close to threshold the angular decay
distribution must display a sin2θΦK+
_____________________________
Φ in relative S-wave
transition from 3P1 (pp)-entrance channel to 1S0 (pp) final-state
clear effect of pp-FSI
MH etal PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 18
ANKE ppppФ production at εΦ= 76 MeV
ldquoinside Φrdquo
no acceptance correction
spin-averaged squared transition matrix element
multiplied by pp-FSI (Jost function)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 19
hellip and final differential distributions at 76 MeV
angular distributions (symmetric about cos θ = 0)
polar decay angle
ANKE DISTO (83 MeV)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 20
hellip and final differential distributions at 76 MeV
185 MeV (for comparison)
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 21
hellip and ppФ total cross section dilemma
full
Ps
Pp
SpSs
76 MeV
Simplest way out A Φp threshold enhancement leads to a significant energy dependence of some of the AL l coefficients
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 22
ANKE pndФ (differential amp total cross sections)
Y Maeda etal PRL 97 (2006) 142301
pn d
pp pp
ddK+ = 3(a∙sin2
K++2b∙cos2K+)8 tot = a+b
Feb 11 2014 | M Hartmann J-PARC workshop 23
ANKE Φ(rarrKK) production in pA - Φ-width measurement
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
SPring-8 photo-production later also by CLAS
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the Φ production in the following form
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
experiment at ANKE
Feb 11 2014 | M Hartmann J-PARC workshop 24
Ф KK selection
all
delayed
all K
KK
Feb 11 2014 | M Hartmann J-PARC workshop 25
Transparency ratios experiment and models
VMagas et al PRC 71 (2005) 065202LRoca (private communication)
ValenciaEOset et alMC amp Chiral Unitary Approach
EParyev JPhys G 36 (2009) 015103
MoscowEParyevNuclear Spectral Function Approach
HSchade BKaumlmpfer (private communication) cf PRC 81 (2010) 034902
RossendorfBKaumlmpfer et alBUU
Relevant features for models
forward acceptance
two-step production processes
σpnrarrpnΦ
σpprarrppΦ
asymp 4
MH etal PRC 85 (2012) 035206
Feb 11 2014 | M Hartmann J-PARC workshop 26
In-medium width ΓΦ and σ
ΦN cross section
ΓΦlab
(ρ0)=pΦ
EσΦ N
ρ0LDA
Model dependent analysis of the ANKE data
MoscowPParyevRossendorfBKaempfer etalValenciaEOset et al
MH etal PRC 85 (2012) 035206
cf A Polyanskiy etal PLB 695 (2011) 74 () MH etal EPJ Web Conf 36 (2012) 00011
()
Feb 11 2014 | M Hartmann J-PARC workshop 27
Double differential cross section of Φ production
+ common systematics ~ 20
ANKEBUUNSP appr
MH etal PRC 85 035206 (2012)
Feb 11 2014 | M Hartmann J-PARC workshop 28
ANKE (non-Φ) KK production in pA - first lookpreliminary
C All (K+) Au All (K+)
go to ratios
prelim
inar
y
02 lt p(K+) lt 06 GeVc θ(K+Kndash) lt 12deg IM(K+Kndash) lt 1005 GeV
model calculation (NSP appr E Paryev) absorption from KN scatt data
U(Kndash) = -180
-126
-60
0 MeV
U(Kndash) = -180
-126
-60
0 MeV
Feb 11 2014 | M Hartmann J-PARC workshop 29
ANKE (non-Φ) KK production in pA - first lookpreliminary
Underway calculations from
Valencia group (Eulogio Oset)
Angels Ramos amp Luis Roca
AuC CuC CC
U(Kndash) = 0
-60
-126
-180 MeV
preliminary
Feb 11 2014 | M Hartmann J-PARC workshop 30
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
W Augustyniak etal PLB 718 (2012) 64
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 31
W Augustyniak etal PLB 718 (2012) 64
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
Preparation for longitudinal polarization build-up at COSY and PAX-at-CERNAD
Siberian Snake
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 4
WASA ABC structure
Isospin decomposition of ABC resonance structurePhys Lett B 721 (2013) 229rarr pure isoscalar effect If resonance in np systemrarr effect should be present in np scattering
Most sensitive observable in np scatteringanalyzing power Ay and its energy dependence near θCM asymp 90deg
First resultcorresponding signalat resonance position
θCM asymp 90deg
isovector+
isoscalar
isoscalar
isovector
WASA
WASA
WASA
WASASAID
np rarr nprarr
Further analysisneeded
Feb 11 2014 | M Hartmann J-PARC workshop 5
WASA CSB in dd rarr 4He π0
Probing hadronic effects of the u- and d-quark mass difference
Charge Symmetry u harr d subgroup of Isospin Symmetryinsensitive to charge difference
dd rarr 4He π0 CS σ = 0 CS σ ~ |MCSB|2 ne 0
Stephenson et al σtot(Q = 14 MeV) = 127 plusmn 22 pb(PRL 91 (2003) 142302) σtot(Q = 30 MeV) = 151 plusmn 31 pb
rarr consistent with s-wave π-production
Contribution of p-wave at higher energies (Q = 60 MeV)
Experimental 3He4He separationchallenges σtot(3He n π0) asymp 3∙104 σtot(4He π0)
Pilot run σtot prelim = (118 plusmn 18stat plusmn 13sys plusmn 8norm) pbfirst differential cross section
dd rarr 4He γγ
+ dd rarr 3He n π0
+ dd rarr 4He π0
theoretical analysis amp prediction
rarr more precise data needed 8 week production run with optimized setup (FebMar 2014)
Feb 11 2014 | M Hartmann J-PARC workshop 6
TOF Hyperon production
Separation of singlet and triplet scattering length
(see eg EPJA 49 (2013)157 PLB 688 (2010) 142
Feb 11 2014 | M Hartmann J-PARC workshop 7
Recent precision data (pp elastic scattering Ay)
ANKE ANKEEDDA EDDAAy Ay
EDDA ANKE NN-scattering
fast proton (FD) slow proton (STT)
prelim
inar
y
great impact on NN phase shifts (SAID group)fundamental quantities for nuclear physics
Ongoing double polarized measurements (np system)
Feb 11 2014 | M Hartmann J-PARC workshop 8
ANKE Double-polarized experiments
Double-polarized experiments approved
ABS Openable storage cell(luminosity factor 5 more)
(i) p n n p (AI AIJ)
(ii) p n pps (Axz parameter)
(iii) p p K+ p (CYY coefficient)
down to 10 mm diameter about 85 polarization
httpcollaborationsfz-juelichdeikpankeproposalsshtml
Feb 11 2014 | M Hartmann J-PARC workshop 9
COSY KKΦ pro- duction (ANKE )
(wwwfz-juelichdeikp orMH PoS 057 (2011))
DISTO
COSYKK amp Φ production in pp pd amp dd (world data)
Feb 11 2014 | M Hartmann J-PARC workshop 10
ANKE pprarrppKK at = 51 MeV
Assumption Kp FSI effect
f(q) = 1(1-iaq) q relative momentum
a scattering length
ldquo3-body-FSIrdquo harr f(q1) f(q
2)
|a| asymp 15 fm
p
p
KK
Y Maeda etal PRC 77 (2008) 015204
strong Kp andor Kpp FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 11
ANKE ppKK production at εKK= 108 MeV
ldquooutside Φrdquo
no acceptance correction
M (K minus pp)
M (K + pp)F=F pp(q pp) times
F K p (q K p1)times
F K p(qK p 2)times
F K K (qK K )
QJ Ye etal PRC 85
(2012) 035211
|a| asymp 15 fm
Feb 11 2014 | M Hartmann J-PARC workshop 12
ratio of exp KK inv mass to MC (without KK interaction)
KK production amplitudes (I=01)
pp rarr ppKK (total cross section)
pp KK Kp-FSIphase space
COSY-11 COSY-ANKE
24 MeV 51 amp 108 MeV
Y Maeda etal PRC 77 (2008) 015204
A Dzyuba etal PLB 668 (2008) 315
M Silarski etal PRC 80 (2009) 045202 88 (2013) 025205
QJ Ye etal PRC 85 (2012) 035211
DISTO
|B1B0|2 = 03 effective aKminusp=15i fm
aKminusp=245i fm
ANKE
QJ Ye etal PRC 87 (2013) 065203
Feb 11 2014 | M Hartmann J-PARC workshop 13
ANKE pprarrdKK
A Dzyuba etal EPJ A 38 (2008) 1
dK FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 14
ANKE pnrarrdKK
42 MeV lt lt 52 MeV 12 MeV lt lt 22 MeV
Y Maeda etal PRC 79 (2009) 018201
dK FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 15
pp rarr ppKKndash
pp rarr dKK
pn rarr dKKndash
pd rarr 3HeKKndash
dd rarr 4HeKKndash - COSY ANKE COSY-11 MOMO - DISTO
tota
l cro
ss s
ectio
n n
b
pd rarr 3He a0(980) WASA-COSY
BR90 weak signal (~1nb =256 MeV preliminary)
KK BR10 a0 f0
EPJ A 42 (2009) 1
PRC 75 (2007) 015204
Chuan Zheng PhD INP
Proton amp deuteron induced KK production (world data)
Feb 11 2014 | M Hartmann J-PARC workshop 16
ANKE ppppФ total cross sections
ANKE DISTO
only tot
76 MeV (new)
ldquoSsrdquo + pp-FSI
DISTOhigher PWno pp-FSI
Feb 11 2014 | M Hartmann J-PARC workshop 17
ANKE ppppФ (differential cross sections) at εΦ= 185 MeV
close to threshold the angular decay
distribution must display a sin2θΦK+
_____________________________
Φ in relative S-wave
transition from 3P1 (pp)-entrance channel to 1S0 (pp) final-state
clear effect of pp-FSI
MH etal PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 18
ANKE ppppФ production at εΦ= 76 MeV
ldquoinside Φrdquo
no acceptance correction
spin-averaged squared transition matrix element
multiplied by pp-FSI (Jost function)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 19
hellip and final differential distributions at 76 MeV
angular distributions (symmetric about cos θ = 0)
polar decay angle
ANKE DISTO (83 MeV)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 20
hellip and final differential distributions at 76 MeV
185 MeV (for comparison)
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 21
hellip and ppФ total cross section dilemma
full
Ps
Pp
SpSs
76 MeV
Simplest way out A Φp threshold enhancement leads to a significant energy dependence of some of the AL l coefficients
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 22
ANKE pndФ (differential amp total cross sections)
Y Maeda etal PRL 97 (2006) 142301
pn d
pp pp
ddK+ = 3(a∙sin2
K++2b∙cos2K+)8 tot = a+b
Feb 11 2014 | M Hartmann J-PARC workshop 23
ANKE Φ(rarrKK) production in pA - Φ-width measurement
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
SPring-8 photo-production later also by CLAS
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the Φ production in the following form
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
experiment at ANKE
Feb 11 2014 | M Hartmann J-PARC workshop 24
Ф KK selection
all
delayed
all K
KK
Feb 11 2014 | M Hartmann J-PARC workshop 25
Transparency ratios experiment and models
VMagas et al PRC 71 (2005) 065202LRoca (private communication)
ValenciaEOset et alMC amp Chiral Unitary Approach
EParyev JPhys G 36 (2009) 015103
MoscowEParyevNuclear Spectral Function Approach
HSchade BKaumlmpfer (private communication) cf PRC 81 (2010) 034902
RossendorfBKaumlmpfer et alBUU
Relevant features for models
forward acceptance
two-step production processes
σpnrarrpnΦ
σpprarrppΦ
asymp 4
MH etal PRC 85 (2012) 035206
Feb 11 2014 | M Hartmann J-PARC workshop 26
In-medium width ΓΦ and σ
ΦN cross section
ΓΦlab
(ρ0)=pΦ
EσΦ N
ρ0LDA
Model dependent analysis of the ANKE data
MoscowPParyevRossendorfBKaempfer etalValenciaEOset et al
MH etal PRC 85 (2012) 035206
cf A Polyanskiy etal PLB 695 (2011) 74 () MH etal EPJ Web Conf 36 (2012) 00011
()
Feb 11 2014 | M Hartmann J-PARC workshop 27
Double differential cross section of Φ production
+ common systematics ~ 20
ANKEBUUNSP appr
MH etal PRC 85 035206 (2012)
Feb 11 2014 | M Hartmann J-PARC workshop 28
ANKE (non-Φ) KK production in pA - first lookpreliminary
C All (K+) Au All (K+)
go to ratios
prelim
inar
y
02 lt p(K+) lt 06 GeVc θ(K+Kndash) lt 12deg IM(K+Kndash) lt 1005 GeV
model calculation (NSP appr E Paryev) absorption from KN scatt data
U(Kndash) = -180
-126
-60
0 MeV
U(Kndash) = -180
-126
-60
0 MeV
Feb 11 2014 | M Hartmann J-PARC workshop 29
ANKE (non-Φ) KK production in pA - first lookpreliminary
Underway calculations from
Valencia group (Eulogio Oset)
Angels Ramos amp Luis Roca
AuC CuC CC
U(Kndash) = 0
-60
-126
-180 MeV
preliminary
Feb 11 2014 | M Hartmann J-PARC workshop 30
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
W Augustyniak etal PLB 718 (2012) 64
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 31
W Augustyniak etal PLB 718 (2012) 64
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
Preparation for longitudinal polarization build-up at COSY and PAX-at-CERNAD
Siberian Snake
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 5
WASA CSB in dd rarr 4He π0
Probing hadronic effects of the u- and d-quark mass difference
Charge Symmetry u harr d subgroup of Isospin Symmetryinsensitive to charge difference
dd rarr 4He π0 CS σ = 0 CS σ ~ |MCSB|2 ne 0
Stephenson et al σtot(Q = 14 MeV) = 127 plusmn 22 pb(PRL 91 (2003) 142302) σtot(Q = 30 MeV) = 151 plusmn 31 pb
rarr consistent with s-wave π-production
Contribution of p-wave at higher energies (Q = 60 MeV)
Experimental 3He4He separationchallenges σtot(3He n π0) asymp 3∙104 σtot(4He π0)
Pilot run σtot prelim = (118 plusmn 18stat plusmn 13sys plusmn 8norm) pbfirst differential cross section
dd rarr 4He γγ
+ dd rarr 3He n π0
+ dd rarr 4He π0
theoretical analysis amp prediction
rarr more precise data needed 8 week production run with optimized setup (FebMar 2014)
Feb 11 2014 | M Hartmann J-PARC workshop 6
TOF Hyperon production
Separation of singlet and triplet scattering length
(see eg EPJA 49 (2013)157 PLB 688 (2010) 142
Feb 11 2014 | M Hartmann J-PARC workshop 7
Recent precision data (pp elastic scattering Ay)
ANKE ANKEEDDA EDDAAy Ay
EDDA ANKE NN-scattering
fast proton (FD) slow proton (STT)
prelim
inar
y
great impact on NN phase shifts (SAID group)fundamental quantities for nuclear physics
Ongoing double polarized measurements (np system)
Feb 11 2014 | M Hartmann J-PARC workshop 8
ANKE Double-polarized experiments
Double-polarized experiments approved
ABS Openable storage cell(luminosity factor 5 more)
(i) p n n p (AI AIJ)
(ii) p n pps (Axz parameter)
(iii) p p K+ p (CYY coefficient)
down to 10 mm diameter about 85 polarization
httpcollaborationsfz-juelichdeikpankeproposalsshtml
Feb 11 2014 | M Hartmann J-PARC workshop 9
COSY KKΦ pro- duction (ANKE )
(wwwfz-juelichdeikp orMH PoS 057 (2011))
DISTO
COSYKK amp Φ production in pp pd amp dd (world data)
Feb 11 2014 | M Hartmann J-PARC workshop 10
ANKE pprarrppKK at = 51 MeV
Assumption Kp FSI effect
f(q) = 1(1-iaq) q relative momentum
a scattering length
ldquo3-body-FSIrdquo harr f(q1) f(q
2)
|a| asymp 15 fm
p
p
KK
Y Maeda etal PRC 77 (2008) 015204
strong Kp andor Kpp FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 11
ANKE ppKK production at εKK= 108 MeV
ldquooutside Φrdquo
no acceptance correction
M (K minus pp)
M (K + pp)F=F pp(q pp) times
F K p (q K p1)times
F K p(qK p 2)times
F K K (qK K )
QJ Ye etal PRC 85
(2012) 035211
|a| asymp 15 fm
Feb 11 2014 | M Hartmann J-PARC workshop 12
ratio of exp KK inv mass to MC (without KK interaction)
KK production amplitudes (I=01)
pp rarr ppKK (total cross section)
pp KK Kp-FSIphase space
COSY-11 COSY-ANKE
24 MeV 51 amp 108 MeV
Y Maeda etal PRC 77 (2008) 015204
A Dzyuba etal PLB 668 (2008) 315
M Silarski etal PRC 80 (2009) 045202 88 (2013) 025205
QJ Ye etal PRC 85 (2012) 035211
DISTO
|B1B0|2 = 03 effective aKminusp=15i fm
aKminusp=245i fm
ANKE
QJ Ye etal PRC 87 (2013) 065203
Feb 11 2014 | M Hartmann J-PARC workshop 13
ANKE pprarrdKK
A Dzyuba etal EPJ A 38 (2008) 1
dK FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 14
ANKE pnrarrdKK
42 MeV lt lt 52 MeV 12 MeV lt lt 22 MeV
Y Maeda etal PRC 79 (2009) 018201
dK FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 15
pp rarr ppKKndash
pp rarr dKK
pn rarr dKKndash
pd rarr 3HeKKndash
dd rarr 4HeKKndash - COSY ANKE COSY-11 MOMO - DISTO
tota
l cro
ss s
ectio
n n
b
pd rarr 3He a0(980) WASA-COSY
BR90 weak signal (~1nb =256 MeV preliminary)
KK BR10 a0 f0
EPJ A 42 (2009) 1
PRC 75 (2007) 015204
Chuan Zheng PhD INP
Proton amp deuteron induced KK production (world data)
Feb 11 2014 | M Hartmann J-PARC workshop 16
ANKE ppppФ total cross sections
ANKE DISTO
only tot
76 MeV (new)
ldquoSsrdquo + pp-FSI
DISTOhigher PWno pp-FSI
Feb 11 2014 | M Hartmann J-PARC workshop 17
ANKE ppppФ (differential cross sections) at εΦ= 185 MeV
close to threshold the angular decay
distribution must display a sin2θΦK+
_____________________________
Φ in relative S-wave
transition from 3P1 (pp)-entrance channel to 1S0 (pp) final-state
clear effect of pp-FSI
MH etal PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 18
ANKE ppppФ production at εΦ= 76 MeV
ldquoinside Φrdquo
no acceptance correction
spin-averaged squared transition matrix element
multiplied by pp-FSI (Jost function)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 19
hellip and final differential distributions at 76 MeV
angular distributions (symmetric about cos θ = 0)
polar decay angle
ANKE DISTO (83 MeV)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 20
hellip and final differential distributions at 76 MeV
185 MeV (for comparison)
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 21
hellip and ppФ total cross section dilemma
full
Ps
Pp
SpSs
76 MeV
Simplest way out A Φp threshold enhancement leads to a significant energy dependence of some of the AL l coefficients
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 22
ANKE pndФ (differential amp total cross sections)
Y Maeda etal PRL 97 (2006) 142301
pn d
pp pp
ddK+ = 3(a∙sin2
K++2b∙cos2K+)8 tot = a+b
Feb 11 2014 | M Hartmann J-PARC workshop 23
ANKE Φ(rarrKK) production in pA - Φ-width measurement
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
SPring-8 photo-production later also by CLAS
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the Φ production in the following form
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
experiment at ANKE
Feb 11 2014 | M Hartmann J-PARC workshop 24
Ф KK selection
all
delayed
all K
KK
Feb 11 2014 | M Hartmann J-PARC workshop 25
Transparency ratios experiment and models
VMagas et al PRC 71 (2005) 065202LRoca (private communication)
ValenciaEOset et alMC amp Chiral Unitary Approach
EParyev JPhys G 36 (2009) 015103
MoscowEParyevNuclear Spectral Function Approach
HSchade BKaumlmpfer (private communication) cf PRC 81 (2010) 034902
RossendorfBKaumlmpfer et alBUU
Relevant features for models
forward acceptance
two-step production processes
σpnrarrpnΦ
σpprarrppΦ
asymp 4
MH etal PRC 85 (2012) 035206
Feb 11 2014 | M Hartmann J-PARC workshop 26
In-medium width ΓΦ and σ
ΦN cross section
ΓΦlab
(ρ0)=pΦ
EσΦ N
ρ0LDA
Model dependent analysis of the ANKE data
MoscowPParyevRossendorfBKaempfer etalValenciaEOset et al
MH etal PRC 85 (2012) 035206
cf A Polyanskiy etal PLB 695 (2011) 74 () MH etal EPJ Web Conf 36 (2012) 00011
()
Feb 11 2014 | M Hartmann J-PARC workshop 27
Double differential cross section of Φ production
+ common systematics ~ 20
ANKEBUUNSP appr
MH etal PRC 85 035206 (2012)
Feb 11 2014 | M Hartmann J-PARC workshop 28
ANKE (non-Φ) KK production in pA - first lookpreliminary
C All (K+) Au All (K+)
go to ratios
prelim
inar
y
02 lt p(K+) lt 06 GeVc θ(K+Kndash) lt 12deg IM(K+Kndash) lt 1005 GeV
model calculation (NSP appr E Paryev) absorption from KN scatt data
U(Kndash) = -180
-126
-60
0 MeV
U(Kndash) = -180
-126
-60
0 MeV
Feb 11 2014 | M Hartmann J-PARC workshop 29
ANKE (non-Φ) KK production in pA - first lookpreliminary
Underway calculations from
Valencia group (Eulogio Oset)
Angels Ramos amp Luis Roca
AuC CuC CC
U(Kndash) = 0
-60
-126
-180 MeV
preliminary
Feb 11 2014 | M Hartmann J-PARC workshop 30
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
W Augustyniak etal PLB 718 (2012) 64
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 31
W Augustyniak etal PLB 718 (2012) 64
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
Preparation for longitudinal polarization build-up at COSY and PAX-at-CERNAD
Siberian Snake
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 6
TOF Hyperon production
Separation of singlet and triplet scattering length
(see eg EPJA 49 (2013)157 PLB 688 (2010) 142
Feb 11 2014 | M Hartmann J-PARC workshop 7
Recent precision data (pp elastic scattering Ay)
ANKE ANKEEDDA EDDAAy Ay
EDDA ANKE NN-scattering
fast proton (FD) slow proton (STT)
prelim
inar
y
great impact on NN phase shifts (SAID group)fundamental quantities for nuclear physics
Ongoing double polarized measurements (np system)
Feb 11 2014 | M Hartmann J-PARC workshop 8
ANKE Double-polarized experiments
Double-polarized experiments approved
ABS Openable storage cell(luminosity factor 5 more)
(i) p n n p (AI AIJ)
(ii) p n pps (Axz parameter)
(iii) p p K+ p (CYY coefficient)
down to 10 mm diameter about 85 polarization
httpcollaborationsfz-juelichdeikpankeproposalsshtml
Feb 11 2014 | M Hartmann J-PARC workshop 9
COSY KKΦ pro- duction (ANKE )
(wwwfz-juelichdeikp orMH PoS 057 (2011))
DISTO
COSYKK amp Φ production in pp pd amp dd (world data)
Feb 11 2014 | M Hartmann J-PARC workshop 10
ANKE pprarrppKK at = 51 MeV
Assumption Kp FSI effect
f(q) = 1(1-iaq) q relative momentum
a scattering length
ldquo3-body-FSIrdquo harr f(q1) f(q
2)
|a| asymp 15 fm
p
p
KK
Y Maeda etal PRC 77 (2008) 015204
strong Kp andor Kpp FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 11
ANKE ppKK production at εKK= 108 MeV
ldquooutside Φrdquo
no acceptance correction
M (K minus pp)
M (K + pp)F=F pp(q pp) times
F K p (q K p1)times
F K p(qK p 2)times
F K K (qK K )
QJ Ye etal PRC 85
(2012) 035211
|a| asymp 15 fm
Feb 11 2014 | M Hartmann J-PARC workshop 12
ratio of exp KK inv mass to MC (without KK interaction)
KK production amplitudes (I=01)
pp rarr ppKK (total cross section)
pp KK Kp-FSIphase space
COSY-11 COSY-ANKE
24 MeV 51 amp 108 MeV
Y Maeda etal PRC 77 (2008) 015204
A Dzyuba etal PLB 668 (2008) 315
M Silarski etal PRC 80 (2009) 045202 88 (2013) 025205
QJ Ye etal PRC 85 (2012) 035211
DISTO
|B1B0|2 = 03 effective aKminusp=15i fm
aKminusp=245i fm
ANKE
QJ Ye etal PRC 87 (2013) 065203
Feb 11 2014 | M Hartmann J-PARC workshop 13
ANKE pprarrdKK
A Dzyuba etal EPJ A 38 (2008) 1
dK FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 14
ANKE pnrarrdKK
42 MeV lt lt 52 MeV 12 MeV lt lt 22 MeV
Y Maeda etal PRC 79 (2009) 018201
dK FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 15
pp rarr ppKKndash
pp rarr dKK
pn rarr dKKndash
pd rarr 3HeKKndash
dd rarr 4HeKKndash - COSY ANKE COSY-11 MOMO - DISTO
tota
l cro
ss s
ectio
n n
b
pd rarr 3He a0(980) WASA-COSY
BR90 weak signal (~1nb =256 MeV preliminary)
KK BR10 a0 f0
EPJ A 42 (2009) 1
PRC 75 (2007) 015204
Chuan Zheng PhD INP
Proton amp deuteron induced KK production (world data)
Feb 11 2014 | M Hartmann J-PARC workshop 16
ANKE ppppФ total cross sections
ANKE DISTO
only tot
76 MeV (new)
ldquoSsrdquo + pp-FSI
DISTOhigher PWno pp-FSI
Feb 11 2014 | M Hartmann J-PARC workshop 17
ANKE ppppФ (differential cross sections) at εΦ= 185 MeV
close to threshold the angular decay
distribution must display a sin2θΦK+
_____________________________
Φ in relative S-wave
transition from 3P1 (pp)-entrance channel to 1S0 (pp) final-state
clear effect of pp-FSI
MH etal PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 18
ANKE ppppФ production at εΦ= 76 MeV
ldquoinside Φrdquo
no acceptance correction
spin-averaged squared transition matrix element
multiplied by pp-FSI (Jost function)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 19
hellip and final differential distributions at 76 MeV
angular distributions (symmetric about cos θ = 0)
polar decay angle
ANKE DISTO (83 MeV)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 20
hellip and final differential distributions at 76 MeV
185 MeV (for comparison)
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 21
hellip and ppФ total cross section dilemma
full
Ps
Pp
SpSs
76 MeV
Simplest way out A Φp threshold enhancement leads to a significant energy dependence of some of the AL l coefficients
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 22
ANKE pndФ (differential amp total cross sections)
Y Maeda etal PRL 97 (2006) 142301
pn d
pp pp
ddK+ = 3(a∙sin2
K++2b∙cos2K+)8 tot = a+b
Feb 11 2014 | M Hartmann J-PARC workshop 23
ANKE Φ(rarrKK) production in pA - Φ-width measurement
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
SPring-8 photo-production later also by CLAS
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the Φ production in the following form
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
experiment at ANKE
Feb 11 2014 | M Hartmann J-PARC workshop 24
Ф KK selection
all
delayed
all K
KK
Feb 11 2014 | M Hartmann J-PARC workshop 25
Transparency ratios experiment and models
VMagas et al PRC 71 (2005) 065202LRoca (private communication)
ValenciaEOset et alMC amp Chiral Unitary Approach
EParyev JPhys G 36 (2009) 015103
MoscowEParyevNuclear Spectral Function Approach
HSchade BKaumlmpfer (private communication) cf PRC 81 (2010) 034902
RossendorfBKaumlmpfer et alBUU
Relevant features for models
forward acceptance
two-step production processes
σpnrarrpnΦ
σpprarrppΦ
asymp 4
MH etal PRC 85 (2012) 035206
Feb 11 2014 | M Hartmann J-PARC workshop 26
In-medium width ΓΦ and σ
ΦN cross section
ΓΦlab
(ρ0)=pΦ
EσΦ N
ρ0LDA
Model dependent analysis of the ANKE data
MoscowPParyevRossendorfBKaempfer etalValenciaEOset et al
MH etal PRC 85 (2012) 035206
cf A Polyanskiy etal PLB 695 (2011) 74 () MH etal EPJ Web Conf 36 (2012) 00011
()
Feb 11 2014 | M Hartmann J-PARC workshop 27
Double differential cross section of Φ production
+ common systematics ~ 20
ANKEBUUNSP appr
MH etal PRC 85 035206 (2012)
Feb 11 2014 | M Hartmann J-PARC workshop 28
ANKE (non-Φ) KK production in pA - first lookpreliminary
C All (K+) Au All (K+)
go to ratios
prelim
inar
y
02 lt p(K+) lt 06 GeVc θ(K+Kndash) lt 12deg IM(K+Kndash) lt 1005 GeV
model calculation (NSP appr E Paryev) absorption from KN scatt data
U(Kndash) = -180
-126
-60
0 MeV
U(Kndash) = -180
-126
-60
0 MeV
Feb 11 2014 | M Hartmann J-PARC workshop 29
ANKE (non-Φ) KK production in pA - first lookpreliminary
Underway calculations from
Valencia group (Eulogio Oset)
Angels Ramos amp Luis Roca
AuC CuC CC
U(Kndash) = 0
-60
-126
-180 MeV
preliminary
Feb 11 2014 | M Hartmann J-PARC workshop 30
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
W Augustyniak etal PLB 718 (2012) 64
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 31
W Augustyniak etal PLB 718 (2012) 64
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
Preparation for longitudinal polarization build-up at COSY and PAX-at-CERNAD
Siberian Snake
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 7
Recent precision data (pp elastic scattering Ay)
ANKE ANKEEDDA EDDAAy Ay
EDDA ANKE NN-scattering
fast proton (FD) slow proton (STT)
prelim
inar
y
great impact on NN phase shifts (SAID group)fundamental quantities for nuclear physics
Ongoing double polarized measurements (np system)
Feb 11 2014 | M Hartmann J-PARC workshop 8
ANKE Double-polarized experiments
Double-polarized experiments approved
ABS Openable storage cell(luminosity factor 5 more)
(i) p n n p (AI AIJ)
(ii) p n pps (Axz parameter)
(iii) p p K+ p (CYY coefficient)
down to 10 mm diameter about 85 polarization
httpcollaborationsfz-juelichdeikpankeproposalsshtml
Feb 11 2014 | M Hartmann J-PARC workshop 9
COSY KKΦ pro- duction (ANKE )
(wwwfz-juelichdeikp orMH PoS 057 (2011))
DISTO
COSYKK amp Φ production in pp pd amp dd (world data)
Feb 11 2014 | M Hartmann J-PARC workshop 10
ANKE pprarrppKK at = 51 MeV
Assumption Kp FSI effect
f(q) = 1(1-iaq) q relative momentum
a scattering length
ldquo3-body-FSIrdquo harr f(q1) f(q
2)
|a| asymp 15 fm
p
p
KK
Y Maeda etal PRC 77 (2008) 015204
strong Kp andor Kpp FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 11
ANKE ppKK production at εKK= 108 MeV
ldquooutside Φrdquo
no acceptance correction
M (K minus pp)
M (K + pp)F=F pp(q pp) times
F K p (q K p1)times
F K p(qK p 2)times
F K K (qK K )
QJ Ye etal PRC 85
(2012) 035211
|a| asymp 15 fm
Feb 11 2014 | M Hartmann J-PARC workshop 12
ratio of exp KK inv mass to MC (without KK interaction)
KK production amplitudes (I=01)
pp rarr ppKK (total cross section)
pp KK Kp-FSIphase space
COSY-11 COSY-ANKE
24 MeV 51 amp 108 MeV
Y Maeda etal PRC 77 (2008) 015204
A Dzyuba etal PLB 668 (2008) 315
M Silarski etal PRC 80 (2009) 045202 88 (2013) 025205
QJ Ye etal PRC 85 (2012) 035211
DISTO
|B1B0|2 = 03 effective aKminusp=15i fm
aKminusp=245i fm
ANKE
QJ Ye etal PRC 87 (2013) 065203
Feb 11 2014 | M Hartmann J-PARC workshop 13
ANKE pprarrdKK
A Dzyuba etal EPJ A 38 (2008) 1
dK FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 14
ANKE pnrarrdKK
42 MeV lt lt 52 MeV 12 MeV lt lt 22 MeV
Y Maeda etal PRC 79 (2009) 018201
dK FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 15
pp rarr ppKKndash
pp rarr dKK
pn rarr dKKndash
pd rarr 3HeKKndash
dd rarr 4HeKKndash - COSY ANKE COSY-11 MOMO - DISTO
tota
l cro
ss s
ectio
n n
b
pd rarr 3He a0(980) WASA-COSY
BR90 weak signal (~1nb =256 MeV preliminary)
KK BR10 a0 f0
EPJ A 42 (2009) 1
PRC 75 (2007) 015204
Chuan Zheng PhD INP
Proton amp deuteron induced KK production (world data)
Feb 11 2014 | M Hartmann J-PARC workshop 16
ANKE ppppФ total cross sections
ANKE DISTO
only tot
76 MeV (new)
ldquoSsrdquo + pp-FSI
DISTOhigher PWno pp-FSI
Feb 11 2014 | M Hartmann J-PARC workshop 17
ANKE ppppФ (differential cross sections) at εΦ= 185 MeV
close to threshold the angular decay
distribution must display a sin2θΦK+
_____________________________
Φ in relative S-wave
transition from 3P1 (pp)-entrance channel to 1S0 (pp) final-state
clear effect of pp-FSI
MH etal PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 18
ANKE ppppФ production at εΦ= 76 MeV
ldquoinside Φrdquo
no acceptance correction
spin-averaged squared transition matrix element
multiplied by pp-FSI (Jost function)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 19
hellip and final differential distributions at 76 MeV
angular distributions (symmetric about cos θ = 0)
polar decay angle
ANKE DISTO (83 MeV)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 20
hellip and final differential distributions at 76 MeV
185 MeV (for comparison)
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 21
hellip and ppФ total cross section dilemma
full
Ps
Pp
SpSs
76 MeV
Simplest way out A Φp threshold enhancement leads to a significant energy dependence of some of the AL l coefficients
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 22
ANKE pndФ (differential amp total cross sections)
Y Maeda etal PRL 97 (2006) 142301
pn d
pp pp
ddK+ = 3(a∙sin2
K++2b∙cos2K+)8 tot = a+b
Feb 11 2014 | M Hartmann J-PARC workshop 23
ANKE Φ(rarrKK) production in pA - Φ-width measurement
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
SPring-8 photo-production later also by CLAS
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the Φ production in the following form
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
experiment at ANKE
Feb 11 2014 | M Hartmann J-PARC workshop 24
Ф KK selection
all
delayed
all K
KK
Feb 11 2014 | M Hartmann J-PARC workshop 25
Transparency ratios experiment and models
VMagas et al PRC 71 (2005) 065202LRoca (private communication)
ValenciaEOset et alMC amp Chiral Unitary Approach
EParyev JPhys G 36 (2009) 015103
MoscowEParyevNuclear Spectral Function Approach
HSchade BKaumlmpfer (private communication) cf PRC 81 (2010) 034902
RossendorfBKaumlmpfer et alBUU
Relevant features for models
forward acceptance
two-step production processes
σpnrarrpnΦ
σpprarrppΦ
asymp 4
MH etal PRC 85 (2012) 035206
Feb 11 2014 | M Hartmann J-PARC workshop 26
In-medium width ΓΦ and σ
ΦN cross section
ΓΦlab
(ρ0)=pΦ
EσΦ N
ρ0LDA
Model dependent analysis of the ANKE data
MoscowPParyevRossendorfBKaempfer etalValenciaEOset et al
MH etal PRC 85 (2012) 035206
cf A Polyanskiy etal PLB 695 (2011) 74 () MH etal EPJ Web Conf 36 (2012) 00011
()
Feb 11 2014 | M Hartmann J-PARC workshop 27
Double differential cross section of Φ production
+ common systematics ~ 20
ANKEBUUNSP appr
MH etal PRC 85 035206 (2012)
Feb 11 2014 | M Hartmann J-PARC workshop 28
ANKE (non-Φ) KK production in pA - first lookpreliminary
C All (K+) Au All (K+)
go to ratios
prelim
inar
y
02 lt p(K+) lt 06 GeVc θ(K+Kndash) lt 12deg IM(K+Kndash) lt 1005 GeV
model calculation (NSP appr E Paryev) absorption from KN scatt data
U(Kndash) = -180
-126
-60
0 MeV
U(Kndash) = -180
-126
-60
0 MeV
Feb 11 2014 | M Hartmann J-PARC workshop 29
ANKE (non-Φ) KK production in pA - first lookpreliminary
Underway calculations from
Valencia group (Eulogio Oset)
Angels Ramos amp Luis Roca
AuC CuC CC
U(Kndash) = 0
-60
-126
-180 MeV
preliminary
Feb 11 2014 | M Hartmann J-PARC workshop 30
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
W Augustyniak etal PLB 718 (2012) 64
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 31
W Augustyniak etal PLB 718 (2012) 64
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
Preparation for longitudinal polarization build-up at COSY and PAX-at-CERNAD
Siberian Snake
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 8
ANKE Double-polarized experiments
Double-polarized experiments approved
ABS Openable storage cell(luminosity factor 5 more)
(i) p n n p (AI AIJ)
(ii) p n pps (Axz parameter)
(iii) p p K+ p (CYY coefficient)
down to 10 mm diameter about 85 polarization
httpcollaborationsfz-juelichdeikpankeproposalsshtml
Feb 11 2014 | M Hartmann J-PARC workshop 9
COSY KKΦ pro- duction (ANKE )
(wwwfz-juelichdeikp orMH PoS 057 (2011))
DISTO
COSYKK amp Φ production in pp pd amp dd (world data)
Feb 11 2014 | M Hartmann J-PARC workshop 10
ANKE pprarrppKK at = 51 MeV
Assumption Kp FSI effect
f(q) = 1(1-iaq) q relative momentum
a scattering length
ldquo3-body-FSIrdquo harr f(q1) f(q
2)
|a| asymp 15 fm
p
p
KK
Y Maeda etal PRC 77 (2008) 015204
strong Kp andor Kpp FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 11
ANKE ppKK production at εKK= 108 MeV
ldquooutside Φrdquo
no acceptance correction
M (K minus pp)
M (K + pp)F=F pp(q pp) times
F K p (q K p1)times
F K p(qK p 2)times
F K K (qK K )
QJ Ye etal PRC 85
(2012) 035211
|a| asymp 15 fm
Feb 11 2014 | M Hartmann J-PARC workshop 12
ratio of exp KK inv mass to MC (without KK interaction)
KK production amplitudes (I=01)
pp rarr ppKK (total cross section)
pp KK Kp-FSIphase space
COSY-11 COSY-ANKE
24 MeV 51 amp 108 MeV
Y Maeda etal PRC 77 (2008) 015204
A Dzyuba etal PLB 668 (2008) 315
M Silarski etal PRC 80 (2009) 045202 88 (2013) 025205
QJ Ye etal PRC 85 (2012) 035211
DISTO
|B1B0|2 = 03 effective aKminusp=15i fm
aKminusp=245i fm
ANKE
QJ Ye etal PRC 87 (2013) 065203
Feb 11 2014 | M Hartmann J-PARC workshop 13
ANKE pprarrdKK
A Dzyuba etal EPJ A 38 (2008) 1
dK FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 14
ANKE pnrarrdKK
42 MeV lt lt 52 MeV 12 MeV lt lt 22 MeV
Y Maeda etal PRC 79 (2009) 018201
dK FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 15
pp rarr ppKKndash
pp rarr dKK
pn rarr dKKndash
pd rarr 3HeKKndash
dd rarr 4HeKKndash - COSY ANKE COSY-11 MOMO - DISTO
tota
l cro
ss s
ectio
n n
b
pd rarr 3He a0(980) WASA-COSY
BR90 weak signal (~1nb =256 MeV preliminary)
KK BR10 a0 f0
EPJ A 42 (2009) 1
PRC 75 (2007) 015204
Chuan Zheng PhD INP
Proton amp deuteron induced KK production (world data)
Feb 11 2014 | M Hartmann J-PARC workshop 16
ANKE ppppФ total cross sections
ANKE DISTO
only tot
76 MeV (new)
ldquoSsrdquo + pp-FSI
DISTOhigher PWno pp-FSI
Feb 11 2014 | M Hartmann J-PARC workshop 17
ANKE ppppФ (differential cross sections) at εΦ= 185 MeV
close to threshold the angular decay
distribution must display a sin2θΦK+
_____________________________
Φ in relative S-wave
transition from 3P1 (pp)-entrance channel to 1S0 (pp) final-state
clear effect of pp-FSI
MH etal PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 18
ANKE ppppФ production at εΦ= 76 MeV
ldquoinside Φrdquo
no acceptance correction
spin-averaged squared transition matrix element
multiplied by pp-FSI (Jost function)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 19
hellip and final differential distributions at 76 MeV
angular distributions (symmetric about cos θ = 0)
polar decay angle
ANKE DISTO (83 MeV)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 20
hellip and final differential distributions at 76 MeV
185 MeV (for comparison)
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 21
hellip and ppФ total cross section dilemma
full
Ps
Pp
SpSs
76 MeV
Simplest way out A Φp threshold enhancement leads to a significant energy dependence of some of the AL l coefficients
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 22
ANKE pndФ (differential amp total cross sections)
Y Maeda etal PRL 97 (2006) 142301
pn d
pp pp
ddK+ = 3(a∙sin2
K++2b∙cos2K+)8 tot = a+b
Feb 11 2014 | M Hartmann J-PARC workshop 23
ANKE Φ(rarrKK) production in pA - Φ-width measurement
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
SPring-8 photo-production later also by CLAS
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the Φ production in the following form
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
experiment at ANKE
Feb 11 2014 | M Hartmann J-PARC workshop 24
Ф KK selection
all
delayed
all K
KK
Feb 11 2014 | M Hartmann J-PARC workshop 25
Transparency ratios experiment and models
VMagas et al PRC 71 (2005) 065202LRoca (private communication)
ValenciaEOset et alMC amp Chiral Unitary Approach
EParyev JPhys G 36 (2009) 015103
MoscowEParyevNuclear Spectral Function Approach
HSchade BKaumlmpfer (private communication) cf PRC 81 (2010) 034902
RossendorfBKaumlmpfer et alBUU
Relevant features for models
forward acceptance
two-step production processes
σpnrarrpnΦ
σpprarrppΦ
asymp 4
MH etal PRC 85 (2012) 035206
Feb 11 2014 | M Hartmann J-PARC workshop 26
In-medium width ΓΦ and σ
ΦN cross section
ΓΦlab
(ρ0)=pΦ
EσΦ N
ρ0LDA
Model dependent analysis of the ANKE data
MoscowPParyevRossendorfBKaempfer etalValenciaEOset et al
MH etal PRC 85 (2012) 035206
cf A Polyanskiy etal PLB 695 (2011) 74 () MH etal EPJ Web Conf 36 (2012) 00011
()
Feb 11 2014 | M Hartmann J-PARC workshop 27
Double differential cross section of Φ production
+ common systematics ~ 20
ANKEBUUNSP appr
MH etal PRC 85 035206 (2012)
Feb 11 2014 | M Hartmann J-PARC workshop 28
ANKE (non-Φ) KK production in pA - first lookpreliminary
C All (K+) Au All (K+)
go to ratios
prelim
inar
y
02 lt p(K+) lt 06 GeVc θ(K+Kndash) lt 12deg IM(K+Kndash) lt 1005 GeV
model calculation (NSP appr E Paryev) absorption from KN scatt data
U(Kndash) = -180
-126
-60
0 MeV
U(Kndash) = -180
-126
-60
0 MeV
Feb 11 2014 | M Hartmann J-PARC workshop 29
ANKE (non-Φ) KK production in pA - first lookpreliminary
Underway calculations from
Valencia group (Eulogio Oset)
Angels Ramos amp Luis Roca
AuC CuC CC
U(Kndash) = 0
-60
-126
-180 MeV
preliminary
Feb 11 2014 | M Hartmann J-PARC workshop 30
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
W Augustyniak etal PLB 718 (2012) 64
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 31
W Augustyniak etal PLB 718 (2012) 64
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
Preparation for longitudinal polarization build-up at COSY and PAX-at-CERNAD
Siberian Snake
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 9
COSY KKΦ pro- duction (ANKE )
(wwwfz-juelichdeikp orMH PoS 057 (2011))
DISTO
COSYKK amp Φ production in pp pd amp dd (world data)
Feb 11 2014 | M Hartmann J-PARC workshop 10
ANKE pprarrppKK at = 51 MeV
Assumption Kp FSI effect
f(q) = 1(1-iaq) q relative momentum
a scattering length
ldquo3-body-FSIrdquo harr f(q1) f(q
2)
|a| asymp 15 fm
p
p
KK
Y Maeda etal PRC 77 (2008) 015204
strong Kp andor Kpp FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 11
ANKE ppKK production at εKK= 108 MeV
ldquooutside Φrdquo
no acceptance correction
M (K minus pp)
M (K + pp)F=F pp(q pp) times
F K p (q K p1)times
F K p(qK p 2)times
F K K (qK K )
QJ Ye etal PRC 85
(2012) 035211
|a| asymp 15 fm
Feb 11 2014 | M Hartmann J-PARC workshop 12
ratio of exp KK inv mass to MC (without KK interaction)
KK production amplitudes (I=01)
pp rarr ppKK (total cross section)
pp KK Kp-FSIphase space
COSY-11 COSY-ANKE
24 MeV 51 amp 108 MeV
Y Maeda etal PRC 77 (2008) 015204
A Dzyuba etal PLB 668 (2008) 315
M Silarski etal PRC 80 (2009) 045202 88 (2013) 025205
QJ Ye etal PRC 85 (2012) 035211
DISTO
|B1B0|2 = 03 effective aKminusp=15i fm
aKminusp=245i fm
ANKE
QJ Ye etal PRC 87 (2013) 065203
Feb 11 2014 | M Hartmann J-PARC workshop 13
ANKE pprarrdKK
A Dzyuba etal EPJ A 38 (2008) 1
dK FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 14
ANKE pnrarrdKK
42 MeV lt lt 52 MeV 12 MeV lt lt 22 MeV
Y Maeda etal PRC 79 (2009) 018201
dK FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 15
pp rarr ppKKndash
pp rarr dKK
pn rarr dKKndash
pd rarr 3HeKKndash
dd rarr 4HeKKndash - COSY ANKE COSY-11 MOMO - DISTO
tota
l cro
ss s
ectio
n n
b
pd rarr 3He a0(980) WASA-COSY
BR90 weak signal (~1nb =256 MeV preliminary)
KK BR10 a0 f0
EPJ A 42 (2009) 1
PRC 75 (2007) 015204
Chuan Zheng PhD INP
Proton amp deuteron induced KK production (world data)
Feb 11 2014 | M Hartmann J-PARC workshop 16
ANKE ppppФ total cross sections
ANKE DISTO
only tot
76 MeV (new)
ldquoSsrdquo + pp-FSI
DISTOhigher PWno pp-FSI
Feb 11 2014 | M Hartmann J-PARC workshop 17
ANKE ppppФ (differential cross sections) at εΦ= 185 MeV
close to threshold the angular decay
distribution must display a sin2θΦK+
_____________________________
Φ in relative S-wave
transition from 3P1 (pp)-entrance channel to 1S0 (pp) final-state
clear effect of pp-FSI
MH etal PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 18
ANKE ppppФ production at εΦ= 76 MeV
ldquoinside Φrdquo
no acceptance correction
spin-averaged squared transition matrix element
multiplied by pp-FSI (Jost function)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 19
hellip and final differential distributions at 76 MeV
angular distributions (symmetric about cos θ = 0)
polar decay angle
ANKE DISTO (83 MeV)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 20
hellip and final differential distributions at 76 MeV
185 MeV (for comparison)
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 21
hellip and ppФ total cross section dilemma
full
Ps
Pp
SpSs
76 MeV
Simplest way out A Φp threshold enhancement leads to a significant energy dependence of some of the AL l coefficients
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 22
ANKE pndФ (differential amp total cross sections)
Y Maeda etal PRL 97 (2006) 142301
pn d
pp pp
ddK+ = 3(a∙sin2
K++2b∙cos2K+)8 tot = a+b
Feb 11 2014 | M Hartmann J-PARC workshop 23
ANKE Φ(rarrKK) production in pA - Φ-width measurement
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
SPring-8 photo-production later also by CLAS
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the Φ production in the following form
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
experiment at ANKE
Feb 11 2014 | M Hartmann J-PARC workshop 24
Ф KK selection
all
delayed
all K
KK
Feb 11 2014 | M Hartmann J-PARC workshop 25
Transparency ratios experiment and models
VMagas et al PRC 71 (2005) 065202LRoca (private communication)
ValenciaEOset et alMC amp Chiral Unitary Approach
EParyev JPhys G 36 (2009) 015103
MoscowEParyevNuclear Spectral Function Approach
HSchade BKaumlmpfer (private communication) cf PRC 81 (2010) 034902
RossendorfBKaumlmpfer et alBUU
Relevant features for models
forward acceptance
two-step production processes
σpnrarrpnΦ
σpprarrppΦ
asymp 4
MH etal PRC 85 (2012) 035206
Feb 11 2014 | M Hartmann J-PARC workshop 26
In-medium width ΓΦ and σ
ΦN cross section
ΓΦlab
(ρ0)=pΦ
EσΦ N
ρ0LDA
Model dependent analysis of the ANKE data
MoscowPParyevRossendorfBKaempfer etalValenciaEOset et al
MH etal PRC 85 (2012) 035206
cf A Polyanskiy etal PLB 695 (2011) 74 () MH etal EPJ Web Conf 36 (2012) 00011
()
Feb 11 2014 | M Hartmann J-PARC workshop 27
Double differential cross section of Φ production
+ common systematics ~ 20
ANKEBUUNSP appr
MH etal PRC 85 035206 (2012)
Feb 11 2014 | M Hartmann J-PARC workshop 28
ANKE (non-Φ) KK production in pA - first lookpreliminary
C All (K+) Au All (K+)
go to ratios
prelim
inar
y
02 lt p(K+) lt 06 GeVc θ(K+Kndash) lt 12deg IM(K+Kndash) lt 1005 GeV
model calculation (NSP appr E Paryev) absorption from KN scatt data
U(Kndash) = -180
-126
-60
0 MeV
U(Kndash) = -180
-126
-60
0 MeV
Feb 11 2014 | M Hartmann J-PARC workshop 29
ANKE (non-Φ) KK production in pA - first lookpreliminary
Underway calculations from
Valencia group (Eulogio Oset)
Angels Ramos amp Luis Roca
AuC CuC CC
U(Kndash) = 0
-60
-126
-180 MeV
preliminary
Feb 11 2014 | M Hartmann J-PARC workshop 30
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
W Augustyniak etal PLB 718 (2012) 64
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 31
W Augustyniak etal PLB 718 (2012) 64
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
Preparation for longitudinal polarization build-up at COSY and PAX-at-CERNAD
Siberian Snake
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 10
ANKE pprarrppKK at = 51 MeV
Assumption Kp FSI effect
f(q) = 1(1-iaq) q relative momentum
a scattering length
ldquo3-body-FSIrdquo harr f(q1) f(q
2)
|a| asymp 15 fm
p
p
KK
Y Maeda etal PRC 77 (2008) 015204
strong Kp andor Kpp FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 11
ANKE ppKK production at εKK= 108 MeV
ldquooutside Φrdquo
no acceptance correction
M (K minus pp)
M (K + pp)F=F pp(q pp) times
F K p (q K p1)times
F K p(qK p 2)times
F K K (qK K )
QJ Ye etal PRC 85
(2012) 035211
|a| asymp 15 fm
Feb 11 2014 | M Hartmann J-PARC workshop 12
ratio of exp KK inv mass to MC (without KK interaction)
KK production amplitudes (I=01)
pp rarr ppKK (total cross section)
pp KK Kp-FSIphase space
COSY-11 COSY-ANKE
24 MeV 51 amp 108 MeV
Y Maeda etal PRC 77 (2008) 015204
A Dzyuba etal PLB 668 (2008) 315
M Silarski etal PRC 80 (2009) 045202 88 (2013) 025205
QJ Ye etal PRC 85 (2012) 035211
DISTO
|B1B0|2 = 03 effective aKminusp=15i fm
aKminusp=245i fm
ANKE
QJ Ye etal PRC 87 (2013) 065203
Feb 11 2014 | M Hartmann J-PARC workshop 13
ANKE pprarrdKK
A Dzyuba etal EPJ A 38 (2008) 1
dK FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 14
ANKE pnrarrdKK
42 MeV lt lt 52 MeV 12 MeV lt lt 22 MeV
Y Maeda etal PRC 79 (2009) 018201
dK FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 15
pp rarr ppKKndash
pp rarr dKK
pn rarr dKKndash
pd rarr 3HeKKndash
dd rarr 4HeKKndash - COSY ANKE COSY-11 MOMO - DISTO
tota
l cro
ss s
ectio
n n
b
pd rarr 3He a0(980) WASA-COSY
BR90 weak signal (~1nb =256 MeV preliminary)
KK BR10 a0 f0
EPJ A 42 (2009) 1
PRC 75 (2007) 015204
Chuan Zheng PhD INP
Proton amp deuteron induced KK production (world data)
Feb 11 2014 | M Hartmann J-PARC workshop 16
ANKE ppppФ total cross sections
ANKE DISTO
only tot
76 MeV (new)
ldquoSsrdquo + pp-FSI
DISTOhigher PWno pp-FSI
Feb 11 2014 | M Hartmann J-PARC workshop 17
ANKE ppppФ (differential cross sections) at εΦ= 185 MeV
close to threshold the angular decay
distribution must display a sin2θΦK+
_____________________________
Φ in relative S-wave
transition from 3P1 (pp)-entrance channel to 1S0 (pp) final-state
clear effect of pp-FSI
MH etal PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 18
ANKE ppppФ production at εΦ= 76 MeV
ldquoinside Φrdquo
no acceptance correction
spin-averaged squared transition matrix element
multiplied by pp-FSI (Jost function)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 19
hellip and final differential distributions at 76 MeV
angular distributions (symmetric about cos θ = 0)
polar decay angle
ANKE DISTO (83 MeV)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 20
hellip and final differential distributions at 76 MeV
185 MeV (for comparison)
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 21
hellip and ppФ total cross section dilemma
full
Ps
Pp
SpSs
76 MeV
Simplest way out A Φp threshold enhancement leads to a significant energy dependence of some of the AL l coefficients
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 22
ANKE pndФ (differential amp total cross sections)
Y Maeda etal PRL 97 (2006) 142301
pn d
pp pp
ddK+ = 3(a∙sin2
K++2b∙cos2K+)8 tot = a+b
Feb 11 2014 | M Hartmann J-PARC workshop 23
ANKE Φ(rarrKK) production in pA - Φ-width measurement
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
SPring-8 photo-production later also by CLAS
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the Φ production in the following form
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
experiment at ANKE
Feb 11 2014 | M Hartmann J-PARC workshop 24
Ф KK selection
all
delayed
all K
KK
Feb 11 2014 | M Hartmann J-PARC workshop 25
Transparency ratios experiment and models
VMagas et al PRC 71 (2005) 065202LRoca (private communication)
ValenciaEOset et alMC amp Chiral Unitary Approach
EParyev JPhys G 36 (2009) 015103
MoscowEParyevNuclear Spectral Function Approach
HSchade BKaumlmpfer (private communication) cf PRC 81 (2010) 034902
RossendorfBKaumlmpfer et alBUU
Relevant features for models
forward acceptance
two-step production processes
σpnrarrpnΦ
σpprarrppΦ
asymp 4
MH etal PRC 85 (2012) 035206
Feb 11 2014 | M Hartmann J-PARC workshop 26
In-medium width ΓΦ and σ
ΦN cross section
ΓΦlab
(ρ0)=pΦ
EσΦ N
ρ0LDA
Model dependent analysis of the ANKE data
MoscowPParyevRossendorfBKaempfer etalValenciaEOset et al
MH etal PRC 85 (2012) 035206
cf A Polyanskiy etal PLB 695 (2011) 74 () MH etal EPJ Web Conf 36 (2012) 00011
()
Feb 11 2014 | M Hartmann J-PARC workshop 27
Double differential cross section of Φ production
+ common systematics ~ 20
ANKEBUUNSP appr
MH etal PRC 85 035206 (2012)
Feb 11 2014 | M Hartmann J-PARC workshop 28
ANKE (non-Φ) KK production in pA - first lookpreliminary
C All (K+) Au All (K+)
go to ratios
prelim
inar
y
02 lt p(K+) lt 06 GeVc θ(K+Kndash) lt 12deg IM(K+Kndash) lt 1005 GeV
model calculation (NSP appr E Paryev) absorption from KN scatt data
U(Kndash) = -180
-126
-60
0 MeV
U(Kndash) = -180
-126
-60
0 MeV
Feb 11 2014 | M Hartmann J-PARC workshop 29
ANKE (non-Φ) KK production in pA - first lookpreliminary
Underway calculations from
Valencia group (Eulogio Oset)
Angels Ramos amp Luis Roca
AuC CuC CC
U(Kndash) = 0
-60
-126
-180 MeV
preliminary
Feb 11 2014 | M Hartmann J-PARC workshop 30
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
W Augustyniak etal PLB 718 (2012) 64
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 31
W Augustyniak etal PLB 718 (2012) 64
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
Preparation for longitudinal polarization build-up at COSY and PAX-at-CERNAD
Siberian Snake
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 11
ANKE ppKK production at εKK= 108 MeV
ldquooutside Φrdquo
no acceptance correction
M (K minus pp)
M (K + pp)F=F pp(q pp) times
F K p (q K p1)times
F K p(qK p 2)times
F K K (qK K )
QJ Ye etal PRC 85
(2012) 035211
|a| asymp 15 fm
Feb 11 2014 | M Hartmann J-PARC workshop 12
ratio of exp KK inv mass to MC (without KK interaction)
KK production amplitudes (I=01)
pp rarr ppKK (total cross section)
pp KK Kp-FSIphase space
COSY-11 COSY-ANKE
24 MeV 51 amp 108 MeV
Y Maeda etal PRC 77 (2008) 015204
A Dzyuba etal PLB 668 (2008) 315
M Silarski etal PRC 80 (2009) 045202 88 (2013) 025205
QJ Ye etal PRC 85 (2012) 035211
DISTO
|B1B0|2 = 03 effective aKminusp=15i fm
aKminusp=245i fm
ANKE
QJ Ye etal PRC 87 (2013) 065203
Feb 11 2014 | M Hartmann J-PARC workshop 13
ANKE pprarrdKK
A Dzyuba etal EPJ A 38 (2008) 1
dK FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 14
ANKE pnrarrdKK
42 MeV lt lt 52 MeV 12 MeV lt lt 22 MeV
Y Maeda etal PRC 79 (2009) 018201
dK FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 15
pp rarr ppKKndash
pp rarr dKK
pn rarr dKKndash
pd rarr 3HeKKndash
dd rarr 4HeKKndash - COSY ANKE COSY-11 MOMO - DISTO
tota
l cro
ss s
ectio
n n
b
pd rarr 3He a0(980) WASA-COSY
BR90 weak signal (~1nb =256 MeV preliminary)
KK BR10 a0 f0
EPJ A 42 (2009) 1
PRC 75 (2007) 015204
Chuan Zheng PhD INP
Proton amp deuteron induced KK production (world data)
Feb 11 2014 | M Hartmann J-PARC workshop 16
ANKE ppppФ total cross sections
ANKE DISTO
only tot
76 MeV (new)
ldquoSsrdquo + pp-FSI
DISTOhigher PWno pp-FSI
Feb 11 2014 | M Hartmann J-PARC workshop 17
ANKE ppppФ (differential cross sections) at εΦ= 185 MeV
close to threshold the angular decay
distribution must display a sin2θΦK+
_____________________________
Φ in relative S-wave
transition from 3P1 (pp)-entrance channel to 1S0 (pp) final-state
clear effect of pp-FSI
MH etal PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 18
ANKE ppppФ production at εΦ= 76 MeV
ldquoinside Φrdquo
no acceptance correction
spin-averaged squared transition matrix element
multiplied by pp-FSI (Jost function)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 19
hellip and final differential distributions at 76 MeV
angular distributions (symmetric about cos θ = 0)
polar decay angle
ANKE DISTO (83 MeV)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 20
hellip and final differential distributions at 76 MeV
185 MeV (for comparison)
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 21
hellip and ppФ total cross section dilemma
full
Ps
Pp
SpSs
76 MeV
Simplest way out A Φp threshold enhancement leads to a significant energy dependence of some of the AL l coefficients
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 22
ANKE pndФ (differential amp total cross sections)
Y Maeda etal PRL 97 (2006) 142301
pn d
pp pp
ddK+ = 3(a∙sin2
K++2b∙cos2K+)8 tot = a+b
Feb 11 2014 | M Hartmann J-PARC workshop 23
ANKE Φ(rarrKK) production in pA - Φ-width measurement
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
SPring-8 photo-production later also by CLAS
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the Φ production in the following form
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
experiment at ANKE
Feb 11 2014 | M Hartmann J-PARC workshop 24
Ф KK selection
all
delayed
all K
KK
Feb 11 2014 | M Hartmann J-PARC workshop 25
Transparency ratios experiment and models
VMagas et al PRC 71 (2005) 065202LRoca (private communication)
ValenciaEOset et alMC amp Chiral Unitary Approach
EParyev JPhys G 36 (2009) 015103
MoscowEParyevNuclear Spectral Function Approach
HSchade BKaumlmpfer (private communication) cf PRC 81 (2010) 034902
RossendorfBKaumlmpfer et alBUU
Relevant features for models
forward acceptance
two-step production processes
σpnrarrpnΦ
σpprarrppΦ
asymp 4
MH etal PRC 85 (2012) 035206
Feb 11 2014 | M Hartmann J-PARC workshop 26
In-medium width ΓΦ and σ
ΦN cross section
ΓΦlab
(ρ0)=pΦ
EσΦ N
ρ0LDA
Model dependent analysis of the ANKE data
MoscowPParyevRossendorfBKaempfer etalValenciaEOset et al
MH etal PRC 85 (2012) 035206
cf A Polyanskiy etal PLB 695 (2011) 74 () MH etal EPJ Web Conf 36 (2012) 00011
()
Feb 11 2014 | M Hartmann J-PARC workshop 27
Double differential cross section of Φ production
+ common systematics ~ 20
ANKEBUUNSP appr
MH etal PRC 85 035206 (2012)
Feb 11 2014 | M Hartmann J-PARC workshop 28
ANKE (non-Φ) KK production in pA - first lookpreliminary
C All (K+) Au All (K+)
go to ratios
prelim
inar
y
02 lt p(K+) lt 06 GeVc θ(K+Kndash) lt 12deg IM(K+Kndash) lt 1005 GeV
model calculation (NSP appr E Paryev) absorption from KN scatt data
U(Kndash) = -180
-126
-60
0 MeV
U(Kndash) = -180
-126
-60
0 MeV
Feb 11 2014 | M Hartmann J-PARC workshop 29
ANKE (non-Φ) KK production in pA - first lookpreliminary
Underway calculations from
Valencia group (Eulogio Oset)
Angels Ramos amp Luis Roca
AuC CuC CC
U(Kndash) = 0
-60
-126
-180 MeV
preliminary
Feb 11 2014 | M Hartmann J-PARC workshop 30
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
W Augustyniak etal PLB 718 (2012) 64
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 31
W Augustyniak etal PLB 718 (2012) 64
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
Preparation for longitudinal polarization build-up at COSY and PAX-at-CERNAD
Siberian Snake
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 12
ratio of exp KK inv mass to MC (without KK interaction)
KK production amplitudes (I=01)
pp rarr ppKK (total cross section)
pp KK Kp-FSIphase space
COSY-11 COSY-ANKE
24 MeV 51 amp 108 MeV
Y Maeda etal PRC 77 (2008) 015204
A Dzyuba etal PLB 668 (2008) 315
M Silarski etal PRC 80 (2009) 045202 88 (2013) 025205
QJ Ye etal PRC 85 (2012) 035211
DISTO
|B1B0|2 = 03 effective aKminusp=15i fm
aKminusp=245i fm
ANKE
QJ Ye etal PRC 87 (2013) 065203
Feb 11 2014 | M Hartmann J-PARC workshop 13
ANKE pprarrdKK
A Dzyuba etal EPJ A 38 (2008) 1
dK FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 14
ANKE pnrarrdKK
42 MeV lt lt 52 MeV 12 MeV lt lt 22 MeV
Y Maeda etal PRC 79 (2009) 018201
dK FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 15
pp rarr ppKKndash
pp rarr dKK
pn rarr dKKndash
pd rarr 3HeKKndash
dd rarr 4HeKKndash - COSY ANKE COSY-11 MOMO - DISTO
tota
l cro
ss s
ectio
n n
b
pd rarr 3He a0(980) WASA-COSY
BR90 weak signal (~1nb =256 MeV preliminary)
KK BR10 a0 f0
EPJ A 42 (2009) 1
PRC 75 (2007) 015204
Chuan Zheng PhD INP
Proton amp deuteron induced KK production (world data)
Feb 11 2014 | M Hartmann J-PARC workshop 16
ANKE ppppФ total cross sections
ANKE DISTO
only tot
76 MeV (new)
ldquoSsrdquo + pp-FSI
DISTOhigher PWno pp-FSI
Feb 11 2014 | M Hartmann J-PARC workshop 17
ANKE ppppФ (differential cross sections) at εΦ= 185 MeV
close to threshold the angular decay
distribution must display a sin2θΦK+
_____________________________
Φ in relative S-wave
transition from 3P1 (pp)-entrance channel to 1S0 (pp) final-state
clear effect of pp-FSI
MH etal PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 18
ANKE ppppФ production at εΦ= 76 MeV
ldquoinside Φrdquo
no acceptance correction
spin-averaged squared transition matrix element
multiplied by pp-FSI (Jost function)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 19
hellip and final differential distributions at 76 MeV
angular distributions (symmetric about cos θ = 0)
polar decay angle
ANKE DISTO (83 MeV)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 20
hellip and final differential distributions at 76 MeV
185 MeV (for comparison)
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 21
hellip and ppФ total cross section dilemma
full
Ps
Pp
SpSs
76 MeV
Simplest way out A Φp threshold enhancement leads to a significant energy dependence of some of the AL l coefficients
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 22
ANKE pndФ (differential amp total cross sections)
Y Maeda etal PRL 97 (2006) 142301
pn d
pp pp
ddK+ = 3(a∙sin2
K++2b∙cos2K+)8 tot = a+b
Feb 11 2014 | M Hartmann J-PARC workshop 23
ANKE Φ(rarrKK) production in pA - Φ-width measurement
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
SPring-8 photo-production later also by CLAS
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the Φ production in the following form
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
experiment at ANKE
Feb 11 2014 | M Hartmann J-PARC workshop 24
Ф KK selection
all
delayed
all K
KK
Feb 11 2014 | M Hartmann J-PARC workshop 25
Transparency ratios experiment and models
VMagas et al PRC 71 (2005) 065202LRoca (private communication)
ValenciaEOset et alMC amp Chiral Unitary Approach
EParyev JPhys G 36 (2009) 015103
MoscowEParyevNuclear Spectral Function Approach
HSchade BKaumlmpfer (private communication) cf PRC 81 (2010) 034902
RossendorfBKaumlmpfer et alBUU
Relevant features for models
forward acceptance
two-step production processes
σpnrarrpnΦ
σpprarrppΦ
asymp 4
MH etal PRC 85 (2012) 035206
Feb 11 2014 | M Hartmann J-PARC workshop 26
In-medium width ΓΦ and σ
ΦN cross section
ΓΦlab
(ρ0)=pΦ
EσΦ N
ρ0LDA
Model dependent analysis of the ANKE data
MoscowPParyevRossendorfBKaempfer etalValenciaEOset et al
MH etal PRC 85 (2012) 035206
cf A Polyanskiy etal PLB 695 (2011) 74 () MH etal EPJ Web Conf 36 (2012) 00011
()
Feb 11 2014 | M Hartmann J-PARC workshop 27
Double differential cross section of Φ production
+ common systematics ~ 20
ANKEBUUNSP appr
MH etal PRC 85 035206 (2012)
Feb 11 2014 | M Hartmann J-PARC workshop 28
ANKE (non-Φ) KK production in pA - first lookpreliminary
C All (K+) Au All (K+)
go to ratios
prelim
inar
y
02 lt p(K+) lt 06 GeVc θ(K+Kndash) lt 12deg IM(K+Kndash) lt 1005 GeV
model calculation (NSP appr E Paryev) absorption from KN scatt data
U(Kndash) = -180
-126
-60
0 MeV
U(Kndash) = -180
-126
-60
0 MeV
Feb 11 2014 | M Hartmann J-PARC workshop 29
ANKE (non-Φ) KK production in pA - first lookpreliminary
Underway calculations from
Valencia group (Eulogio Oset)
Angels Ramos amp Luis Roca
AuC CuC CC
U(Kndash) = 0
-60
-126
-180 MeV
preliminary
Feb 11 2014 | M Hartmann J-PARC workshop 30
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
W Augustyniak etal PLB 718 (2012) 64
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 31
W Augustyniak etal PLB 718 (2012) 64
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
Preparation for longitudinal polarization build-up at COSY and PAX-at-CERNAD
Siberian Snake
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 13
ANKE pprarrdKK
A Dzyuba etal EPJ A 38 (2008) 1
dK FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 14
ANKE pnrarrdKK
42 MeV lt lt 52 MeV 12 MeV lt lt 22 MeV
Y Maeda etal PRC 79 (2009) 018201
dK FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 15
pp rarr ppKKndash
pp rarr dKK
pn rarr dKKndash
pd rarr 3HeKKndash
dd rarr 4HeKKndash - COSY ANKE COSY-11 MOMO - DISTO
tota
l cro
ss s
ectio
n n
b
pd rarr 3He a0(980) WASA-COSY
BR90 weak signal (~1nb =256 MeV preliminary)
KK BR10 a0 f0
EPJ A 42 (2009) 1
PRC 75 (2007) 015204
Chuan Zheng PhD INP
Proton amp deuteron induced KK production (world data)
Feb 11 2014 | M Hartmann J-PARC workshop 16
ANKE ppppФ total cross sections
ANKE DISTO
only tot
76 MeV (new)
ldquoSsrdquo + pp-FSI
DISTOhigher PWno pp-FSI
Feb 11 2014 | M Hartmann J-PARC workshop 17
ANKE ppppФ (differential cross sections) at εΦ= 185 MeV
close to threshold the angular decay
distribution must display a sin2θΦK+
_____________________________
Φ in relative S-wave
transition from 3P1 (pp)-entrance channel to 1S0 (pp) final-state
clear effect of pp-FSI
MH etal PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 18
ANKE ppppФ production at εΦ= 76 MeV
ldquoinside Φrdquo
no acceptance correction
spin-averaged squared transition matrix element
multiplied by pp-FSI (Jost function)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 19
hellip and final differential distributions at 76 MeV
angular distributions (symmetric about cos θ = 0)
polar decay angle
ANKE DISTO (83 MeV)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 20
hellip and final differential distributions at 76 MeV
185 MeV (for comparison)
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 21
hellip and ppФ total cross section dilemma
full
Ps
Pp
SpSs
76 MeV
Simplest way out A Φp threshold enhancement leads to a significant energy dependence of some of the AL l coefficients
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 22
ANKE pndФ (differential amp total cross sections)
Y Maeda etal PRL 97 (2006) 142301
pn d
pp pp
ddK+ = 3(a∙sin2
K++2b∙cos2K+)8 tot = a+b
Feb 11 2014 | M Hartmann J-PARC workshop 23
ANKE Φ(rarrKK) production in pA - Φ-width measurement
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
SPring-8 photo-production later also by CLAS
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the Φ production in the following form
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
experiment at ANKE
Feb 11 2014 | M Hartmann J-PARC workshop 24
Ф KK selection
all
delayed
all K
KK
Feb 11 2014 | M Hartmann J-PARC workshop 25
Transparency ratios experiment and models
VMagas et al PRC 71 (2005) 065202LRoca (private communication)
ValenciaEOset et alMC amp Chiral Unitary Approach
EParyev JPhys G 36 (2009) 015103
MoscowEParyevNuclear Spectral Function Approach
HSchade BKaumlmpfer (private communication) cf PRC 81 (2010) 034902
RossendorfBKaumlmpfer et alBUU
Relevant features for models
forward acceptance
two-step production processes
σpnrarrpnΦ
σpprarrppΦ
asymp 4
MH etal PRC 85 (2012) 035206
Feb 11 2014 | M Hartmann J-PARC workshop 26
In-medium width ΓΦ and σ
ΦN cross section
ΓΦlab
(ρ0)=pΦ
EσΦ N
ρ0LDA
Model dependent analysis of the ANKE data
MoscowPParyevRossendorfBKaempfer etalValenciaEOset et al
MH etal PRC 85 (2012) 035206
cf A Polyanskiy etal PLB 695 (2011) 74 () MH etal EPJ Web Conf 36 (2012) 00011
()
Feb 11 2014 | M Hartmann J-PARC workshop 27
Double differential cross section of Φ production
+ common systematics ~ 20
ANKEBUUNSP appr
MH etal PRC 85 035206 (2012)
Feb 11 2014 | M Hartmann J-PARC workshop 28
ANKE (non-Φ) KK production in pA - first lookpreliminary
C All (K+) Au All (K+)
go to ratios
prelim
inar
y
02 lt p(K+) lt 06 GeVc θ(K+Kndash) lt 12deg IM(K+Kndash) lt 1005 GeV
model calculation (NSP appr E Paryev) absorption from KN scatt data
U(Kndash) = -180
-126
-60
0 MeV
U(Kndash) = -180
-126
-60
0 MeV
Feb 11 2014 | M Hartmann J-PARC workshop 29
ANKE (non-Φ) KK production in pA - first lookpreliminary
Underway calculations from
Valencia group (Eulogio Oset)
Angels Ramos amp Luis Roca
AuC CuC CC
U(Kndash) = 0
-60
-126
-180 MeV
preliminary
Feb 11 2014 | M Hartmann J-PARC workshop 30
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
W Augustyniak etal PLB 718 (2012) 64
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 31
W Augustyniak etal PLB 718 (2012) 64
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
Preparation for longitudinal polarization build-up at COSY and PAX-at-CERNAD
Siberian Snake
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 14
ANKE pnrarrdKK
42 MeV lt lt 52 MeV 12 MeV lt lt 22 MeV
Y Maeda etal PRC 79 (2009) 018201
dK FSI is visible
Feb 11 2014 | M Hartmann J-PARC workshop 15
pp rarr ppKKndash
pp rarr dKK
pn rarr dKKndash
pd rarr 3HeKKndash
dd rarr 4HeKKndash - COSY ANKE COSY-11 MOMO - DISTO
tota
l cro
ss s
ectio
n n
b
pd rarr 3He a0(980) WASA-COSY
BR90 weak signal (~1nb =256 MeV preliminary)
KK BR10 a0 f0
EPJ A 42 (2009) 1
PRC 75 (2007) 015204
Chuan Zheng PhD INP
Proton amp deuteron induced KK production (world data)
Feb 11 2014 | M Hartmann J-PARC workshop 16
ANKE ppppФ total cross sections
ANKE DISTO
only tot
76 MeV (new)
ldquoSsrdquo + pp-FSI
DISTOhigher PWno pp-FSI
Feb 11 2014 | M Hartmann J-PARC workshop 17
ANKE ppppФ (differential cross sections) at εΦ= 185 MeV
close to threshold the angular decay
distribution must display a sin2θΦK+
_____________________________
Φ in relative S-wave
transition from 3P1 (pp)-entrance channel to 1S0 (pp) final-state
clear effect of pp-FSI
MH etal PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 18
ANKE ppppФ production at εΦ= 76 MeV
ldquoinside Φrdquo
no acceptance correction
spin-averaged squared transition matrix element
multiplied by pp-FSI (Jost function)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 19
hellip and final differential distributions at 76 MeV
angular distributions (symmetric about cos θ = 0)
polar decay angle
ANKE DISTO (83 MeV)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 20
hellip and final differential distributions at 76 MeV
185 MeV (for comparison)
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 21
hellip and ppФ total cross section dilemma
full
Ps
Pp
SpSs
76 MeV
Simplest way out A Φp threshold enhancement leads to a significant energy dependence of some of the AL l coefficients
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 22
ANKE pndФ (differential amp total cross sections)
Y Maeda etal PRL 97 (2006) 142301
pn d
pp pp
ddK+ = 3(a∙sin2
K++2b∙cos2K+)8 tot = a+b
Feb 11 2014 | M Hartmann J-PARC workshop 23
ANKE Φ(rarrKK) production in pA - Φ-width measurement
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
SPring-8 photo-production later also by CLAS
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the Φ production in the following form
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
experiment at ANKE
Feb 11 2014 | M Hartmann J-PARC workshop 24
Ф KK selection
all
delayed
all K
KK
Feb 11 2014 | M Hartmann J-PARC workshop 25
Transparency ratios experiment and models
VMagas et al PRC 71 (2005) 065202LRoca (private communication)
ValenciaEOset et alMC amp Chiral Unitary Approach
EParyev JPhys G 36 (2009) 015103
MoscowEParyevNuclear Spectral Function Approach
HSchade BKaumlmpfer (private communication) cf PRC 81 (2010) 034902
RossendorfBKaumlmpfer et alBUU
Relevant features for models
forward acceptance
two-step production processes
σpnrarrpnΦ
σpprarrppΦ
asymp 4
MH etal PRC 85 (2012) 035206
Feb 11 2014 | M Hartmann J-PARC workshop 26
In-medium width ΓΦ and σ
ΦN cross section
ΓΦlab
(ρ0)=pΦ
EσΦ N
ρ0LDA
Model dependent analysis of the ANKE data
MoscowPParyevRossendorfBKaempfer etalValenciaEOset et al
MH etal PRC 85 (2012) 035206
cf A Polyanskiy etal PLB 695 (2011) 74 () MH etal EPJ Web Conf 36 (2012) 00011
()
Feb 11 2014 | M Hartmann J-PARC workshop 27
Double differential cross section of Φ production
+ common systematics ~ 20
ANKEBUUNSP appr
MH etal PRC 85 035206 (2012)
Feb 11 2014 | M Hartmann J-PARC workshop 28
ANKE (non-Φ) KK production in pA - first lookpreliminary
C All (K+) Au All (K+)
go to ratios
prelim
inar
y
02 lt p(K+) lt 06 GeVc θ(K+Kndash) lt 12deg IM(K+Kndash) lt 1005 GeV
model calculation (NSP appr E Paryev) absorption from KN scatt data
U(Kndash) = -180
-126
-60
0 MeV
U(Kndash) = -180
-126
-60
0 MeV
Feb 11 2014 | M Hartmann J-PARC workshop 29
ANKE (non-Φ) KK production in pA - first lookpreliminary
Underway calculations from
Valencia group (Eulogio Oset)
Angels Ramos amp Luis Roca
AuC CuC CC
U(Kndash) = 0
-60
-126
-180 MeV
preliminary
Feb 11 2014 | M Hartmann J-PARC workshop 30
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
W Augustyniak etal PLB 718 (2012) 64
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 31
W Augustyniak etal PLB 718 (2012) 64
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
Preparation for longitudinal polarization build-up at COSY and PAX-at-CERNAD
Siberian Snake
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 15
pp rarr ppKKndash
pp rarr dKK
pn rarr dKKndash
pd rarr 3HeKKndash
dd rarr 4HeKKndash - COSY ANKE COSY-11 MOMO - DISTO
tota
l cro
ss s
ectio
n n
b
pd rarr 3He a0(980) WASA-COSY
BR90 weak signal (~1nb =256 MeV preliminary)
KK BR10 a0 f0
EPJ A 42 (2009) 1
PRC 75 (2007) 015204
Chuan Zheng PhD INP
Proton amp deuteron induced KK production (world data)
Feb 11 2014 | M Hartmann J-PARC workshop 16
ANKE ppppФ total cross sections
ANKE DISTO
only tot
76 MeV (new)
ldquoSsrdquo + pp-FSI
DISTOhigher PWno pp-FSI
Feb 11 2014 | M Hartmann J-PARC workshop 17
ANKE ppppФ (differential cross sections) at εΦ= 185 MeV
close to threshold the angular decay
distribution must display a sin2θΦK+
_____________________________
Φ in relative S-wave
transition from 3P1 (pp)-entrance channel to 1S0 (pp) final-state
clear effect of pp-FSI
MH etal PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 18
ANKE ppppФ production at εΦ= 76 MeV
ldquoinside Φrdquo
no acceptance correction
spin-averaged squared transition matrix element
multiplied by pp-FSI (Jost function)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 19
hellip and final differential distributions at 76 MeV
angular distributions (symmetric about cos θ = 0)
polar decay angle
ANKE DISTO (83 MeV)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 20
hellip and final differential distributions at 76 MeV
185 MeV (for comparison)
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 21
hellip and ppФ total cross section dilemma
full
Ps
Pp
SpSs
76 MeV
Simplest way out A Φp threshold enhancement leads to a significant energy dependence of some of the AL l coefficients
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 22
ANKE pndФ (differential amp total cross sections)
Y Maeda etal PRL 97 (2006) 142301
pn d
pp pp
ddK+ = 3(a∙sin2
K++2b∙cos2K+)8 tot = a+b
Feb 11 2014 | M Hartmann J-PARC workshop 23
ANKE Φ(rarrKK) production in pA - Φ-width measurement
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
SPring-8 photo-production later also by CLAS
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the Φ production in the following form
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
experiment at ANKE
Feb 11 2014 | M Hartmann J-PARC workshop 24
Ф KK selection
all
delayed
all K
KK
Feb 11 2014 | M Hartmann J-PARC workshop 25
Transparency ratios experiment and models
VMagas et al PRC 71 (2005) 065202LRoca (private communication)
ValenciaEOset et alMC amp Chiral Unitary Approach
EParyev JPhys G 36 (2009) 015103
MoscowEParyevNuclear Spectral Function Approach
HSchade BKaumlmpfer (private communication) cf PRC 81 (2010) 034902
RossendorfBKaumlmpfer et alBUU
Relevant features for models
forward acceptance
two-step production processes
σpnrarrpnΦ
σpprarrppΦ
asymp 4
MH etal PRC 85 (2012) 035206
Feb 11 2014 | M Hartmann J-PARC workshop 26
In-medium width ΓΦ and σ
ΦN cross section
ΓΦlab
(ρ0)=pΦ
EσΦ N
ρ0LDA
Model dependent analysis of the ANKE data
MoscowPParyevRossendorfBKaempfer etalValenciaEOset et al
MH etal PRC 85 (2012) 035206
cf A Polyanskiy etal PLB 695 (2011) 74 () MH etal EPJ Web Conf 36 (2012) 00011
()
Feb 11 2014 | M Hartmann J-PARC workshop 27
Double differential cross section of Φ production
+ common systematics ~ 20
ANKEBUUNSP appr
MH etal PRC 85 035206 (2012)
Feb 11 2014 | M Hartmann J-PARC workshop 28
ANKE (non-Φ) KK production in pA - first lookpreliminary
C All (K+) Au All (K+)
go to ratios
prelim
inar
y
02 lt p(K+) lt 06 GeVc θ(K+Kndash) lt 12deg IM(K+Kndash) lt 1005 GeV
model calculation (NSP appr E Paryev) absorption from KN scatt data
U(Kndash) = -180
-126
-60
0 MeV
U(Kndash) = -180
-126
-60
0 MeV
Feb 11 2014 | M Hartmann J-PARC workshop 29
ANKE (non-Φ) KK production in pA - first lookpreliminary
Underway calculations from
Valencia group (Eulogio Oset)
Angels Ramos amp Luis Roca
AuC CuC CC
U(Kndash) = 0
-60
-126
-180 MeV
preliminary
Feb 11 2014 | M Hartmann J-PARC workshop 30
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
W Augustyniak etal PLB 718 (2012) 64
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 31
W Augustyniak etal PLB 718 (2012) 64
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
Preparation for longitudinal polarization build-up at COSY and PAX-at-CERNAD
Siberian Snake
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 16
ANKE ppppФ total cross sections
ANKE DISTO
only tot
76 MeV (new)
ldquoSsrdquo + pp-FSI
DISTOhigher PWno pp-FSI
Feb 11 2014 | M Hartmann J-PARC workshop 17
ANKE ppppФ (differential cross sections) at εΦ= 185 MeV
close to threshold the angular decay
distribution must display a sin2θΦK+
_____________________________
Φ in relative S-wave
transition from 3P1 (pp)-entrance channel to 1S0 (pp) final-state
clear effect of pp-FSI
MH etal PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 18
ANKE ppppФ production at εΦ= 76 MeV
ldquoinside Φrdquo
no acceptance correction
spin-averaged squared transition matrix element
multiplied by pp-FSI (Jost function)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 19
hellip and final differential distributions at 76 MeV
angular distributions (symmetric about cos θ = 0)
polar decay angle
ANKE DISTO (83 MeV)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 20
hellip and final differential distributions at 76 MeV
185 MeV (for comparison)
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 21
hellip and ppФ total cross section dilemma
full
Ps
Pp
SpSs
76 MeV
Simplest way out A Φp threshold enhancement leads to a significant energy dependence of some of the AL l coefficients
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 22
ANKE pndФ (differential amp total cross sections)
Y Maeda etal PRL 97 (2006) 142301
pn d
pp pp
ddK+ = 3(a∙sin2
K++2b∙cos2K+)8 tot = a+b
Feb 11 2014 | M Hartmann J-PARC workshop 23
ANKE Φ(rarrKK) production in pA - Φ-width measurement
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
SPring-8 photo-production later also by CLAS
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the Φ production in the following form
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
experiment at ANKE
Feb 11 2014 | M Hartmann J-PARC workshop 24
Ф KK selection
all
delayed
all K
KK
Feb 11 2014 | M Hartmann J-PARC workshop 25
Transparency ratios experiment and models
VMagas et al PRC 71 (2005) 065202LRoca (private communication)
ValenciaEOset et alMC amp Chiral Unitary Approach
EParyev JPhys G 36 (2009) 015103
MoscowEParyevNuclear Spectral Function Approach
HSchade BKaumlmpfer (private communication) cf PRC 81 (2010) 034902
RossendorfBKaumlmpfer et alBUU
Relevant features for models
forward acceptance
two-step production processes
σpnrarrpnΦ
σpprarrppΦ
asymp 4
MH etal PRC 85 (2012) 035206
Feb 11 2014 | M Hartmann J-PARC workshop 26
In-medium width ΓΦ and σ
ΦN cross section
ΓΦlab
(ρ0)=pΦ
EσΦ N
ρ0LDA
Model dependent analysis of the ANKE data
MoscowPParyevRossendorfBKaempfer etalValenciaEOset et al
MH etal PRC 85 (2012) 035206
cf A Polyanskiy etal PLB 695 (2011) 74 () MH etal EPJ Web Conf 36 (2012) 00011
()
Feb 11 2014 | M Hartmann J-PARC workshop 27
Double differential cross section of Φ production
+ common systematics ~ 20
ANKEBUUNSP appr
MH etal PRC 85 035206 (2012)
Feb 11 2014 | M Hartmann J-PARC workshop 28
ANKE (non-Φ) KK production in pA - first lookpreliminary
C All (K+) Au All (K+)
go to ratios
prelim
inar
y
02 lt p(K+) lt 06 GeVc θ(K+Kndash) lt 12deg IM(K+Kndash) lt 1005 GeV
model calculation (NSP appr E Paryev) absorption from KN scatt data
U(Kndash) = -180
-126
-60
0 MeV
U(Kndash) = -180
-126
-60
0 MeV
Feb 11 2014 | M Hartmann J-PARC workshop 29
ANKE (non-Φ) KK production in pA - first lookpreliminary
Underway calculations from
Valencia group (Eulogio Oset)
Angels Ramos amp Luis Roca
AuC CuC CC
U(Kndash) = 0
-60
-126
-180 MeV
preliminary
Feb 11 2014 | M Hartmann J-PARC workshop 30
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
W Augustyniak etal PLB 718 (2012) 64
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 31
W Augustyniak etal PLB 718 (2012) 64
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
Preparation for longitudinal polarization build-up at COSY and PAX-at-CERNAD
Siberian Snake
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 17
ANKE ppppФ (differential cross sections) at εΦ= 185 MeV
close to threshold the angular decay
distribution must display a sin2θΦK+
_____________________________
Φ in relative S-wave
transition from 3P1 (pp)-entrance channel to 1S0 (pp) final-state
clear effect of pp-FSI
MH etal PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 18
ANKE ppppФ production at εΦ= 76 MeV
ldquoinside Φrdquo
no acceptance correction
spin-averaged squared transition matrix element
multiplied by pp-FSI (Jost function)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 19
hellip and final differential distributions at 76 MeV
angular distributions (symmetric about cos θ = 0)
polar decay angle
ANKE DISTO (83 MeV)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 20
hellip and final differential distributions at 76 MeV
185 MeV (for comparison)
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 21
hellip and ppФ total cross section dilemma
full
Ps
Pp
SpSs
76 MeV
Simplest way out A Φp threshold enhancement leads to a significant energy dependence of some of the AL l coefficients
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 22
ANKE pndФ (differential amp total cross sections)
Y Maeda etal PRL 97 (2006) 142301
pn d
pp pp
ddK+ = 3(a∙sin2
K++2b∙cos2K+)8 tot = a+b
Feb 11 2014 | M Hartmann J-PARC workshop 23
ANKE Φ(rarrKK) production in pA - Φ-width measurement
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
SPring-8 photo-production later also by CLAS
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the Φ production in the following form
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
experiment at ANKE
Feb 11 2014 | M Hartmann J-PARC workshop 24
Ф KK selection
all
delayed
all K
KK
Feb 11 2014 | M Hartmann J-PARC workshop 25
Transparency ratios experiment and models
VMagas et al PRC 71 (2005) 065202LRoca (private communication)
ValenciaEOset et alMC amp Chiral Unitary Approach
EParyev JPhys G 36 (2009) 015103
MoscowEParyevNuclear Spectral Function Approach
HSchade BKaumlmpfer (private communication) cf PRC 81 (2010) 034902
RossendorfBKaumlmpfer et alBUU
Relevant features for models
forward acceptance
two-step production processes
σpnrarrpnΦ
σpprarrppΦ
asymp 4
MH etal PRC 85 (2012) 035206
Feb 11 2014 | M Hartmann J-PARC workshop 26
In-medium width ΓΦ and σ
ΦN cross section
ΓΦlab
(ρ0)=pΦ
EσΦ N
ρ0LDA
Model dependent analysis of the ANKE data
MoscowPParyevRossendorfBKaempfer etalValenciaEOset et al
MH etal PRC 85 (2012) 035206
cf A Polyanskiy etal PLB 695 (2011) 74 () MH etal EPJ Web Conf 36 (2012) 00011
()
Feb 11 2014 | M Hartmann J-PARC workshop 27
Double differential cross section of Φ production
+ common systematics ~ 20
ANKEBUUNSP appr
MH etal PRC 85 035206 (2012)
Feb 11 2014 | M Hartmann J-PARC workshop 28
ANKE (non-Φ) KK production in pA - first lookpreliminary
C All (K+) Au All (K+)
go to ratios
prelim
inar
y
02 lt p(K+) lt 06 GeVc θ(K+Kndash) lt 12deg IM(K+Kndash) lt 1005 GeV
model calculation (NSP appr E Paryev) absorption from KN scatt data
U(Kndash) = -180
-126
-60
0 MeV
U(Kndash) = -180
-126
-60
0 MeV
Feb 11 2014 | M Hartmann J-PARC workshop 29
ANKE (non-Φ) KK production in pA - first lookpreliminary
Underway calculations from
Valencia group (Eulogio Oset)
Angels Ramos amp Luis Roca
AuC CuC CC
U(Kndash) = 0
-60
-126
-180 MeV
preliminary
Feb 11 2014 | M Hartmann J-PARC workshop 30
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
W Augustyniak etal PLB 718 (2012) 64
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 31
W Augustyniak etal PLB 718 (2012) 64
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
Preparation for longitudinal polarization build-up at COSY and PAX-at-CERNAD
Siberian Snake
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 18
ANKE ppppФ production at εΦ= 76 MeV
ldquoinside Φrdquo
no acceptance correction
spin-averaged squared transition matrix element
multiplied by pp-FSI (Jost function)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 19
hellip and final differential distributions at 76 MeV
angular distributions (symmetric about cos θ = 0)
polar decay angle
ANKE DISTO (83 MeV)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 20
hellip and final differential distributions at 76 MeV
185 MeV (for comparison)
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 21
hellip and ppФ total cross section dilemma
full
Ps
Pp
SpSs
76 MeV
Simplest way out A Φp threshold enhancement leads to a significant energy dependence of some of the AL l coefficients
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 22
ANKE pndФ (differential amp total cross sections)
Y Maeda etal PRL 97 (2006) 142301
pn d
pp pp
ddK+ = 3(a∙sin2
K++2b∙cos2K+)8 tot = a+b
Feb 11 2014 | M Hartmann J-PARC workshop 23
ANKE Φ(rarrKK) production in pA - Φ-width measurement
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
SPring-8 photo-production later also by CLAS
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the Φ production in the following form
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
experiment at ANKE
Feb 11 2014 | M Hartmann J-PARC workshop 24
Ф KK selection
all
delayed
all K
KK
Feb 11 2014 | M Hartmann J-PARC workshop 25
Transparency ratios experiment and models
VMagas et al PRC 71 (2005) 065202LRoca (private communication)
ValenciaEOset et alMC amp Chiral Unitary Approach
EParyev JPhys G 36 (2009) 015103
MoscowEParyevNuclear Spectral Function Approach
HSchade BKaumlmpfer (private communication) cf PRC 81 (2010) 034902
RossendorfBKaumlmpfer et alBUU
Relevant features for models
forward acceptance
two-step production processes
σpnrarrpnΦ
σpprarrppΦ
asymp 4
MH etal PRC 85 (2012) 035206
Feb 11 2014 | M Hartmann J-PARC workshop 26
In-medium width ΓΦ and σ
ΦN cross section
ΓΦlab
(ρ0)=pΦ
EσΦ N
ρ0LDA
Model dependent analysis of the ANKE data
MoscowPParyevRossendorfBKaempfer etalValenciaEOset et al
MH etal PRC 85 (2012) 035206
cf A Polyanskiy etal PLB 695 (2011) 74 () MH etal EPJ Web Conf 36 (2012) 00011
()
Feb 11 2014 | M Hartmann J-PARC workshop 27
Double differential cross section of Φ production
+ common systematics ~ 20
ANKEBUUNSP appr
MH etal PRC 85 035206 (2012)
Feb 11 2014 | M Hartmann J-PARC workshop 28
ANKE (non-Φ) KK production in pA - first lookpreliminary
C All (K+) Au All (K+)
go to ratios
prelim
inar
y
02 lt p(K+) lt 06 GeVc θ(K+Kndash) lt 12deg IM(K+Kndash) lt 1005 GeV
model calculation (NSP appr E Paryev) absorption from KN scatt data
U(Kndash) = -180
-126
-60
0 MeV
U(Kndash) = -180
-126
-60
0 MeV
Feb 11 2014 | M Hartmann J-PARC workshop 29
ANKE (non-Φ) KK production in pA - first lookpreliminary
Underway calculations from
Valencia group (Eulogio Oset)
Angels Ramos amp Luis Roca
AuC CuC CC
U(Kndash) = 0
-60
-126
-180 MeV
preliminary
Feb 11 2014 | M Hartmann J-PARC workshop 30
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
W Augustyniak etal PLB 718 (2012) 64
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 31
W Augustyniak etal PLB 718 (2012) 64
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
Preparation for longitudinal polarization build-up at COSY and PAX-at-CERNAD
Siberian Snake
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 19
hellip and final differential distributions at 76 MeV
angular distributions (symmetric about cos θ = 0)
polar decay angle
ANKE DISTO (83 MeV)
QJ Ye etal PRC 85
(2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 20
hellip and final differential distributions at 76 MeV
185 MeV (for comparison)
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 21
hellip and ppФ total cross section dilemma
full
Ps
Pp
SpSs
76 MeV
Simplest way out A Φp threshold enhancement leads to a significant energy dependence of some of the AL l coefficients
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 22
ANKE pndФ (differential amp total cross sections)
Y Maeda etal PRL 97 (2006) 142301
pn d
pp pp
ddK+ = 3(a∙sin2
K++2b∙cos2K+)8 tot = a+b
Feb 11 2014 | M Hartmann J-PARC workshop 23
ANKE Φ(rarrKK) production in pA - Φ-width measurement
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
SPring-8 photo-production later also by CLAS
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the Φ production in the following form
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
experiment at ANKE
Feb 11 2014 | M Hartmann J-PARC workshop 24
Ф KK selection
all
delayed
all K
KK
Feb 11 2014 | M Hartmann J-PARC workshop 25
Transparency ratios experiment and models
VMagas et al PRC 71 (2005) 065202LRoca (private communication)
ValenciaEOset et alMC amp Chiral Unitary Approach
EParyev JPhys G 36 (2009) 015103
MoscowEParyevNuclear Spectral Function Approach
HSchade BKaumlmpfer (private communication) cf PRC 81 (2010) 034902
RossendorfBKaumlmpfer et alBUU
Relevant features for models
forward acceptance
two-step production processes
σpnrarrpnΦ
σpprarrppΦ
asymp 4
MH etal PRC 85 (2012) 035206
Feb 11 2014 | M Hartmann J-PARC workshop 26
In-medium width ΓΦ and σ
ΦN cross section
ΓΦlab
(ρ0)=pΦ
EσΦ N
ρ0LDA
Model dependent analysis of the ANKE data
MoscowPParyevRossendorfBKaempfer etalValenciaEOset et al
MH etal PRC 85 (2012) 035206
cf A Polyanskiy etal PLB 695 (2011) 74 () MH etal EPJ Web Conf 36 (2012) 00011
()
Feb 11 2014 | M Hartmann J-PARC workshop 27
Double differential cross section of Φ production
+ common systematics ~ 20
ANKEBUUNSP appr
MH etal PRC 85 035206 (2012)
Feb 11 2014 | M Hartmann J-PARC workshop 28
ANKE (non-Φ) KK production in pA - first lookpreliminary
C All (K+) Au All (K+)
go to ratios
prelim
inar
y
02 lt p(K+) lt 06 GeVc θ(K+Kndash) lt 12deg IM(K+Kndash) lt 1005 GeV
model calculation (NSP appr E Paryev) absorption from KN scatt data
U(Kndash) = -180
-126
-60
0 MeV
U(Kndash) = -180
-126
-60
0 MeV
Feb 11 2014 | M Hartmann J-PARC workshop 29
ANKE (non-Φ) KK production in pA - first lookpreliminary
Underway calculations from
Valencia group (Eulogio Oset)
Angels Ramos amp Luis Roca
AuC CuC CC
U(Kndash) = 0
-60
-126
-180 MeV
preliminary
Feb 11 2014 | M Hartmann J-PARC workshop 30
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
W Augustyniak etal PLB 718 (2012) 64
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 31
W Augustyniak etal PLB 718 (2012) 64
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
Preparation for longitudinal polarization build-up at COSY and PAX-at-CERNAD
Siberian Snake
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 20
hellip and final differential distributions at 76 MeV
185 MeV (for comparison)
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 21
hellip and ppФ total cross section dilemma
full
Ps
Pp
SpSs
76 MeV
Simplest way out A Φp threshold enhancement leads to a significant energy dependence of some of the AL l coefficients
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 22
ANKE pndФ (differential amp total cross sections)
Y Maeda etal PRL 97 (2006) 142301
pn d
pp pp
ddK+ = 3(a∙sin2
K++2b∙cos2K+)8 tot = a+b
Feb 11 2014 | M Hartmann J-PARC workshop 23
ANKE Φ(rarrKK) production in pA - Φ-width measurement
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
SPring-8 photo-production later also by CLAS
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the Φ production in the following form
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
experiment at ANKE
Feb 11 2014 | M Hartmann J-PARC workshop 24
Ф KK selection
all
delayed
all K
KK
Feb 11 2014 | M Hartmann J-PARC workshop 25
Transparency ratios experiment and models
VMagas et al PRC 71 (2005) 065202LRoca (private communication)
ValenciaEOset et alMC amp Chiral Unitary Approach
EParyev JPhys G 36 (2009) 015103
MoscowEParyevNuclear Spectral Function Approach
HSchade BKaumlmpfer (private communication) cf PRC 81 (2010) 034902
RossendorfBKaumlmpfer et alBUU
Relevant features for models
forward acceptance
two-step production processes
σpnrarrpnΦ
σpprarrppΦ
asymp 4
MH etal PRC 85 (2012) 035206
Feb 11 2014 | M Hartmann J-PARC workshop 26
In-medium width ΓΦ and σ
ΦN cross section
ΓΦlab
(ρ0)=pΦ
EσΦ N
ρ0LDA
Model dependent analysis of the ANKE data
MoscowPParyevRossendorfBKaempfer etalValenciaEOset et al
MH etal PRC 85 (2012) 035206
cf A Polyanskiy etal PLB 695 (2011) 74 () MH etal EPJ Web Conf 36 (2012) 00011
()
Feb 11 2014 | M Hartmann J-PARC workshop 27
Double differential cross section of Φ production
+ common systematics ~ 20
ANKEBUUNSP appr
MH etal PRC 85 035206 (2012)
Feb 11 2014 | M Hartmann J-PARC workshop 28
ANKE (non-Φ) KK production in pA - first lookpreliminary
C All (K+) Au All (K+)
go to ratios
prelim
inar
y
02 lt p(K+) lt 06 GeVc θ(K+Kndash) lt 12deg IM(K+Kndash) lt 1005 GeV
model calculation (NSP appr E Paryev) absorption from KN scatt data
U(Kndash) = -180
-126
-60
0 MeV
U(Kndash) = -180
-126
-60
0 MeV
Feb 11 2014 | M Hartmann J-PARC workshop 29
ANKE (non-Φ) KK production in pA - first lookpreliminary
Underway calculations from
Valencia group (Eulogio Oset)
Angels Ramos amp Luis Roca
AuC CuC CC
U(Kndash) = 0
-60
-126
-180 MeV
preliminary
Feb 11 2014 | M Hartmann J-PARC workshop 30
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
W Augustyniak etal PLB 718 (2012) 64
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 31
W Augustyniak etal PLB 718 (2012) 64
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
Preparation for longitudinal polarization build-up at COSY and PAX-at-CERNAD
Siberian Snake
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 21
hellip and ppФ total cross section dilemma
full
Ps
Pp
SpSs
76 MeV
Simplest way out A Φp threshold enhancement leads to a significant energy dependence of some of the AL l coefficients
QJ Ye etal PRC 85 (2012) 035211
Feb 11 2014 | M Hartmann J-PARC workshop 22
ANKE pndФ (differential amp total cross sections)
Y Maeda etal PRL 97 (2006) 142301
pn d
pp pp
ddK+ = 3(a∙sin2
K++2b∙cos2K+)8 tot = a+b
Feb 11 2014 | M Hartmann J-PARC workshop 23
ANKE Φ(rarrKK) production in pA - Φ-width measurement
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
SPring-8 photo-production later also by CLAS
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the Φ production in the following form
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
experiment at ANKE
Feb 11 2014 | M Hartmann J-PARC workshop 24
Ф KK selection
all
delayed
all K
KK
Feb 11 2014 | M Hartmann J-PARC workshop 25
Transparency ratios experiment and models
VMagas et al PRC 71 (2005) 065202LRoca (private communication)
ValenciaEOset et alMC amp Chiral Unitary Approach
EParyev JPhys G 36 (2009) 015103
MoscowEParyevNuclear Spectral Function Approach
HSchade BKaumlmpfer (private communication) cf PRC 81 (2010) 034902
RossendorfBKaumlmpfer et alBUU
Relevant features for models
forward acceptance
two-step production processes
σpnrarrpnΦ
σpprarrppΦ
asymp 4
MH etal PRC 85 (2012) 035206
Feb 11 2014 | M Hartmann J-PARC workshop 26
In-medium width ΓΦ and σ
ΦN cross section
ΓΦlab
(ρ0)=pΦ
EσΦ N
ρ0LDA
Model dependent analysis of the ANKE data
MoscowPParyevRossendorfBKaempfer etalValenciaEOset et al
MH etal PRC 85 (2012) 035206
cf A Polyanskiy etal PLB 695 (2011) 74 () MH etal EPJ Web Conf 36 (2012) 00011
()
Feb 11 2014 | M Hartmann J-PARC workshop 27
Double differential cross section of Φ production
+ common systematics ~ 20
ANKEBUUNSP appr
MH etal PRC 85 035206 (2012)
Feb 11 2014 | M Hartmann J-PARC workshop 28
ANKE (non-Φ) KK production in pA - first lookpreliminary
C All (K+) Au All (K+)
go to ratios
prelim
inar
y
02 lt p(K+) lt 06 GeVc θ(K+Kndash) lt 12deg IM(K+Kndash) lt 1005 GeV
model calculation (NSP appr E Paryev) absorption from KN scatt data
U(Kndash) = -180
-126
-60
0 MeV
U(Kndash) = -180
-126
-60
0 MeV
Feb 11 2014 | M Hartmann J-PARC workshop 29
ANKE (non-Φ) KK production in pA - first lookpreliminary
Underway calculations from
Valencia group (Eulogio Oset)
Angels Ramos amp Luis Roca
AuC CuC CC
U(Kndash) = 0
-60
-126
-180 MeV
preliminary
Feb 11 2014 | M Hartmann J-PARC workshop 30
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
W Augustyniak etal PLB 718 (2012) 64
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 31
W Augustyniak etal PLB 718 (2012) 64
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
Preparation for longitudinal polarization build-up at COSY and PAX-at-CERNAD
Siberian Snake
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 22
ANKE pndФ (differential amp total cross sections)
Y Maeda etal PRL 97 (2006) 142301
pn d
pp pp
ddK+ = 3(a∙sin2
K++2b∙cos2K+)8 tot = a+b
Feb 11 2014 | M Hartmann J-PARC workshop 23
ANKE Φ(rarrKK) production in pA - Φ-width measurement
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
SPring-8 photo-production later also by CLAS
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the Φ production in the following form
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
experiment at ANKE
Feb 11 2014 | M Hartmann J-PARC workshop 24
Ф KK selection
all
delayed
all K
KK
Feb 11 2014 | M Hartmann J-PARC workshop 25
Transparency ratios experiment and models
VMagas et al PRC 71 (2005) 065202LRoca (private communication)
ValenciaEOset et alMC amp Chiral Unitary Approach
EParyev JPhys G 36 (2009) 015103
MoscowEParyevNuclear Spectral Function Approach
HSchade BKaumlmpfer (private communication) cf PRC 81 (2010) 034902
RossendorfBKaumlmpfer et alBUU
Relevant features for models
forward acceptance
two-step production processes
σpnrarrpnΦ
σpprarrppΦ
asymp 4
MH etal PRC 85 (2012) 035206
Feb 11 2014 | M Hartmann J-PARC workshop 26
In-medium width ΓΦ and σ
ΦN cross section
ΓΦlab
(ρ0)=pΦ
EσΦ N
ρ0LDA
Model dependent analysis of the ANKE data
MoscowPParyevRossendorfBKaempfer etalValenciaEOset et al
MH etal PRC 85 (2012) 035206
cf A Polyanskiy etal PLB 695 (2011) 74 () MH etal EPJ Web Conf 36 (2012) 00011
()
Feb 11 2014 | M Hartmann J-PARC workshop 27
Double differential cross section of Φ production
+ common systematics ~ 20
ANKEBUUNSP appr
MH etal PRC 85 035206 (2012)
Feb 11 2014 | M Hartmann J-PARC workshop 28
ANKE (non-Φ) KK production in pA - first lookpreliminary
C All (K+) Au All (K+)
go to ratios
prelim
inar
y
02 lt p(K+) lt 06 GeVc θ(K+Kndash) lt 12deg IM(K+Kndash) lt 1005 GeV
model calculation (NSP appr E Paryev) absorption from KN scatt data
U(Kndash) = -180
-126
-60
0 MeV
U(Kndash) = -180
-126
-60
0 MeV
Feb 11 2014 | M Hartmann J-PARC workshop 29
ANKE (non-Φ) KK production in pA - first lookpreliminary
Underway calculations from
Valencia group (Eulogio Oset)
Angels Ramos amp Luis Roca
AuC CuC CC
U(Kndash) = 0
-60
-126
-180 MeV
preliminary
Feb 11 2014 | M Hartmann J-PARC workshop 30
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
W Augustyniak etal PLB 718 (2012) 64
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 31
W Augustyniak etal PLB 718 (2012) 64
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
Preparation for longitudinal polarization build-up at COSY and PAX-at-CERNAD
Siberian Snake
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 23
ANKE Φ(rarrKK) production in pA - Φ-width measurement
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
SPring-8 photo-production later also by CLAS
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the Φ production in the following form
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
experiment at ANKE
Feb 11 2014 | M Hartmann J-PARC workshop 24
Ф KK selection
all
delayed
all K
KK
Feb 11 2014 | M Hartmann J-PARC workshop 25
Transparency ratios experiment and models
VMagas et al PRC 71 (2005) 065202LRoca (private communication)
ValenciaEOset et alMC amp Chiral Unitary Approach
EParyev JPhys G 36 (2009) 015103
MoscowEParyevNuclear Spectral Function Approach
HSchade BKaumlmpfer (private communication) cf PRC 81 (2010) 034902
RossendorfBKaumlmpfer et alBUU
Relevant features for models
forward acceptance
two-step production processes
σpnrarrpnΦ
σpprarrppΦ
asymp 4
MH etal PRC 85 (2012) 035206
Feb 11 2014 | M Hartmann J-PARC workshop 26
In-medium width ΓΦ and σ
ΦN cross section
ΓΦlab
(ρ0)=pΦ
EσΦ N
ρ0LDA
Model dependent analysis of the ANKE data
MoscowPParyevRossendorfBKaempfer etalValenciaEOset et al
MH etal PRC 85 (2012) 035206
cf A Polyanskiy etal PLB 695 (2011) 74 () MH etal EPJ Web Conf 36 (2012) 00011
()
Feb 11 2014 | M Hartmann J-PARC workshop 27
Double differential cross section of Φ production
+ common systematics ~ 20
ANKEBUUNSP appr
MH etal PRC 85 035206 (2012)
Feb 11 2014 | M Hartmann J-PARC workshop 28
ANKE (non-Φ) KK production in pA - first lookpreliminary
C All (K+) Au All (K+)
go to ratios
prelim
inar
y
02 lt p(K+) lt 06 GeVc θ(K+Kndash) lt 12deg IM(K+Kndash) lt 1005 GeV
model calculation (NSP appr E Paryev) absorption from KN scatt data
U(Kndash) = -180
-126
-60
0 MeV
U(Kndash) = -180
-126
-60
0 MeV
Feb 11 2014 | M Hartmann J-PARC workshop 29
ANKE (non-Φ) KK production in pA - first lookpreliminary
Underway calculations from
Valencia group (Eulogio Oset)
Angels Ramos amp Luis Roca
AuC CuC CC
U(Kndash) = 0
-60
-126
-180 MeV
preliminary
Feb 11 2014 | M Hartmann J-PARC workshop 30
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
W Augustyniak etal PLB 718 (2012) 64
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 31
W Augustyniak etal PLB 718 (2012) 64
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
Preparation for longitudinal polarization build-up at COSY and PAX-at-CERNAD
Siberian Snake
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 24
Ф KK selection
all
delayed
all K
KK
Feb 11 2014 | M Hartmann J-PARC workshop 25
Transparency ratios experiment and models
VMagas et al PRC 71 (2005) 065202LRoca (private communication)
ValenciaEOset et alMC amp Chiral Unitary Approach
EParyev JPhys G 36 (2009) 015103
MoscowEParyevNuclear Spectral Function Approach
HSchade BKaumlmpfer (private communication) cf PRC 81 (2010) 034902
RossendorfBKaumlmpfer et alBUU
Relevant features for models
forward acceptance
two-step production processes
σpnrarrpnΦ
σpprarrppΦ
asymp 4
MH etal PRC 85 (2012) 035206
Feb 11 2014 | M Hartmann J-PARC workshop 26
In-medium width ΓΦ and σ
ΦN cross section
ΓΦlab
(ρ0)=pΦ
EσΦ N
ρ0LDA
Model dependent analysis of the ANKE data
MoscowPParyevRossendorfBKaempfer etalValenciaEOset et al
MH etal PRC 85 (2012) 035206
cf A Polyanskiy etal PLB 695 (2011) 74 () MH etal EPJ Web Conf 36 (2012) 00011
()
Feb 11 2014 | M Hartmann J-PARC workshop 27
Double differential cross section of Φ production
+ common systematics ~ 20
ANKEBUUNSP appr
MH etal PRC 85 035206 (2012)
Feb 11 2014 | M Hartmann J-PARC workshop 28
ANKE (non-Φ) KK production in pA - first lookpreliminary
C All (K+) Au All (K+)
go to ratios
prelim
inar
y
02 lt p(K+) lt 06 GeVc θ(K+Kndash) lt 12deg IM(K+Kndash) lt 1005 GeV
model calculation (NSP appr E Paryev) absorption from KN scatt data
U(Kndash) = -180
-126
-60
0 MeV
U(Kndash) = -180
-126
-60
0 MeV
Feb 11 2014 | M Hartmann J-PARC workshop 29
ANKE (non-Φ) KK production in pA - first lookpreliminary
Underway calculations from
Valencia group (Eulogio Oset)
Angels Ramos amp Luis Roca
AuC CuC CC
U(Kndash) = 0
-60
-126
-180 MeV
preliminary
Feb 11 2014 | M Hartmann J-PARC workshop 30
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
W Augustyniak etal PLB 718 (2012) 64
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 31
W Augustyniak etal PLB 718 (2012) 64
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
Preparation for longitudinal polarization build-up at COSY and PAX-at-CERNAD
Siberian Snake
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 25
Transparency ratios experiment and models
VMagas et al PRC 71 (2005) 065202LRoca (private communication)
ValenciaEOset et alMC amp Chiral Unitary Approach
EParyev JPhys G 36 (2009) 015103
MoscowEParyevNuclear Spectral Function Approach
HSchade BKaumlmpfer (private communication) cf PRC 81 (2010) 034902
RossendorfBKaumlmpfer et alBUU
Relevant features for models
forward acceptance
two-step production processes
σpnrarrpnΦ
σpprarrppΦ
asymp 4
MH etal PRC 85 (2012) 035206
Feb 11 2014 | M Hartmann J-PARC workshop 26
In-medium width ΓΦ and σ
ΦN cross section
ΓΦlab
(ρ0)=pΦ
EσΦ N
ρ0LDA
Model dependent analysis of the ANKE data
MoscowPParyevRossendorfBKaempfer etalValenciaEOset et al
MH etal PRC 85 (2012) 035206
cf A Polyanskiy etal PLB 695 (2011) 74 () MH etal EPJ Web Conf 36 (2012) 00011
()
Feb 11 2014 | M Hartmann J-PARC workshop 27
Double differential cross section of Φ production
+ common systematics ~ 20
ANKEBUUNSP appr
MH etal PRC 85 035206 (2012)
Feb 11 2014 | M Hartmann J-PARC workshop 28
ANKE (non-Φ) KK production in pA - first lookpreliminary
C All (K+) Au All (K+)
go to ratios
prelim
inar
y
02 lt p(K+) lt 06 GeVc θ(K+Kndash) lt 12deg IM(K+Kndash) lt 1005 GeV
model calculation (NSP appr E Paryev) absorption from KN scatt data
U(Kndash) = -180
-126
-60
0 MeV
U(Kndash) = -180
-126
-60
0 MeV
Feb 11 2014 | M Hartmann J-PARC workshop 29
ANKE (non-Φ) KK production in pA - first lookpreliminary
Underway calculations from
Valencia group (Eulogio Oset)
Angels Ramos amp Luis Roca
AuC CuC CC
U(Kndash) = 0
-60
-126
-180 MeV
preliminary
Feb 11 2014 | M Hartmann J-PARC workshop 30
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
W Augustyniak etal PLB 718 (2012) 64
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 31
W Augustyniak etal PLB 718 (2012) 64
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
Preparation for longitudinal polarization build-up at COSY and PAX-at-CERNAD
Siberian Snake
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 26
In-medium width ΓΦ and σ
ΦN cross section
ΓΦlab
(ρ0)=pΦ
EσΦ N
ρ0LDA
Model dependent analysis of the ANKE data
MoscowPParyevRossendorfBKaempfer etalValenciaEOset et al
MH etal PRC 85 (2012) 035206
cf A Polyanskiy etal PLB 695 (2011) 74 () MH etal EPJ Web Conf 36 (2012) 00011
()
Feb 11 2014 | M Hartmann J-PARC workshop 27
Double differential cross section of Φ production
+ common systematics ~ 20
ANKEBUUNSP appr
MH etal PRC 85 035206 (2012)
Feb 11 2014 | M Hartmann J-PARC workshop 28
ANKE (non-Φ) KK production in pA - first lookpreliminary
C All (K+) Au All (K+)
go to ratios
prelim
inar
y
02 lt p(K+) lt 06 GeVc θ(K+Kndash) lt 12deg IM(K+Kndash) lt 1005 GeV
model calculation (NSP appr E Paryev) absorption from KN scatt data
U(Kndash) = -180
-126
-60
0 MeV
U(Kndash) = -180
-126
-60
0 MeV
Feb 11 2014 | M Hartmann J-PARC workshop 29
ANKE (non-Φ) KK production in pA - first lookpreliminary
Underway calculations from
Valencia group (Eulogio Oset)
Angels Ramos amp Luis Roca
AuC CuC CC
U(Kndash) = 0
-60
-126
-180 MeV
preliminary
Feb 11 2014 | M Hartmann J-PARC workshop 30
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
W Augustyniak etal PLB 718 (2012) 64
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 31
W Augustyniak etal PLB 718 (2012) 64
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
Preparation for longitudinal polarization build-up at COSY and PAX-at-CERNAD
Siberian Snake
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 27
Double differential cross section of Φ production
+ common systematics ~ 20
ANKEBUUNSP appr
MH etal PRC 85 035206 (2012)
Feb 11 2014 | M Hartmann J-PARC workshop 28
ANKE (non-Φ) KK production in pA - first lookpreliminary
C All (K+) Au All (K+)
go to ratios
prelim
inar
y
02 lt p(K+) lt 06 GeVc θ(K+Kndash) lt 12deg IM(K+Kndash) lt 1005 GeV
model calculation (NSP appr E Paryev) absorption from KN scatt data
U(Kndash) = -180
-126
-60
0 MeV
U(Kndash) = -180
-126
-60
0 MeV
Feb 11 2014 | M Hartmann J-PARC workshop 29
ANKE (non-Φ) KK production in pA - first lookpreliminary
Underway calculations from
Valencia group (Eulogio Oset)
Angels Ramos amp Luis Roca
AuC CuC CC
U(Kndash) = 0
-60
-126
-180 MeV
preliminary
Feb 11 2014 | M Hartmann J-PARC workshop 30
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
W Augustyniak etal PLB 718 (2012) 64
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 31
W Augustyniak etal PLB 718 (2012) 64
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
Preparation for longitudinal polarization build-up at COSY and PAX-at-CERNAD
Siberian Snake
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 28
ANKE (non-Φ) KK production in pA - first lookpreliminary
C All (K+) Au All (K+)
go to ratios
prelim
inar
y
02 lt p(K+) lt 06 GeVc θ(K+Kndash) lt 12deg IM(K+Kndash) lt 1005 GeV
model calculation (NSP appr E Paryev) absorption from KN scatt data
U(Kndash) = -180
-126
-60
0 MeV
U(Kndash) = -180
-126
-60
0 MeV
Feb 11 2014 | M Hartmann J-PARC workshop 29
ANKE (non-Φ) KK production in pA - first lookpreliminary
Underway calculations from
Valencia group (Eulogio Oset)
Angels Ramos amp Luis Roca
AuC CuC CC
U(Kndash) = 0
-60
-126
-180 MeV
preliminary
Feb 11 2014 | M Hartmann J-PARC workshop 30
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
W Augustyniak etal PLB 718 (2012) 64
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 31
W Augustyniak etal PLB 718 (2012) 64
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
Preparation for longitudinal polarization build-up at COSY and PAX-at-CERNAD
Siberian Snake
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 29
ANKE (non-Φ) KK production in pA - first lookpreliminary
Underway calculations from
Valencia group (Eulogio Oset)
Angels Ramos amp Luis Roca
AuC CuC CC
U(Kndash) = 0
-60
-126
-180 MeV
preliminary
Feb 11 2014 | M Hartmann J-PARC workshop 30
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
W Augustyniak etal PLB 718 (2012) 64
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 31
W Augustyniak etal PLB 718 (2012) 64
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
Preparation for longitudinal polarization build-up at COSY and PAX-at-CERNAD
Siberian Snake
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 30
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
W Augustyniak etal PLB 718 (2012) 64
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 31
W Augustyniak etal PLB 718 (2012) 64
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
Preparation for longitudinal polarization build-up at COSY and PAX-at-CERNAD
Siberian Snake
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 31
W Augustyniak etal PLB 718 (2012) 64
Experiment with COSY schematic
Spin-flipper
Results
COSY Cycle schematic
Preparation for longitudinal polarization build-up at COSY and PAX-at-CERNAD
Siberian Snake
PAX Transverse polarization buildup of a stored beam by Spin-Filtering
prediction SAID
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 32
HESR Layout at FAIR
Main machine parameterMomentum range 15 to 15 GeVcCircumference 575 m Magnetic bending power 50 TmDipole ramp 25 mTsAcceleration rate 02 (GeVc)sGeometrical acceptances for βt = 2 m horizontal 49 mm mrad vertical 57 mm mradMomentum acceptance plusmn 25times10-3
Juumllich is leading lab for design and construction
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 33
WASA
2 MeV e-Cooler (2013)
Barrier Bucket Cavity
Stochastic Cooling
Residual Gas Profile Monitor
Pellet Target
HESR accelerator component tests
HESR Prototyping and Beam Physics
e-Cooler
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 34
bdquoPreassemblyldquo of PANDA parts (TOF area)
CBM PANDA
CBM Silicon Tracker Tests
GEM Detector Tests
RPC ToF-Detector Tests
HADES Diamond Detector Tests
PANDA Straw-tube Tests
Micro-vertex Detector Tests
(Disk DIRC Tests)
Preparatory Work for FAIR Detectors
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 35
Permanent EDMs violate parity P and time reversal symmetry T
Assuming CPT to hold combined symmetry CP violated as well
Electric Dipole Moments
EDM Permanent spatial separation of positive an negative charges
EDMs are candidates to solve mystery of
matter-antimatter asymmetry
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 36
P Harris K Kirch hellip A huge worldwide effort
EDMs ndash Ongoing Planned
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 37
EDM ndash Charged particles (pd hellip)Why (charged particles)
Identification of the CPV-source Highest sensitivity (goal 10-29 e cm)
How (spin tracking in E- B-fields) Polarized particles Precision storage ring
Where (COSY at Forschungszentrum Juumllich) Storage ring (conventional) and polarized beams Accelerator and experimental experience in spin physics Strong environment (eg FZJ infrastructure JARA)
EDM MDMEDM signal = spin precession
out of the horizontal plane
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 38
EDM ndash StrategyCharged-particle EDM searches at storage rings represent a challenge
Stepwise approach
Spin-off Accelerators instrumentation metrology hellip
EDM Sensitivity
Time
RampD test measurements at COSY
Precursor expt with COSY
Design reportfor a dedicated SR
Now
10-24 e cm
10-29 e cm
First directmeasurements
for p d
First directmeasurements
for p d
2018
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 39
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 40
COSY has a strong physics program
spin physics and symmetries
COSY is an ideal test machine for FAIR
preparatory work
accelerator and detector components
COSY is the ideal starting place for charged - particle EDMs and precision measurements
RampD work first direct measurement and dedicated storage ring
Summary and Outlook
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 41
Extra slides
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 42
Goal10-29 e cm
~ 100 members(Aachen Dubna Ferrara Cornell Juumllich Krakow MichiganSt Petersburg Minsk Novosibirsk Stockholm Tbilisi )
10 PhD students
hellip watch for development of vertical polarization
EDMChallenges
Huge E-fieldsShielding B-fieldsSpin coherenceBeam position
Polarimetry()
Storage Ring EDM Project
JEDIJuumllich Electric Dipole Moment Investigations
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 43
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 44
RampD Work at COSY (preliminary)
Up-down asymmetry (~ horizontal polarization) as a function of time
Measured spin tune versus time in cycle
Precision of spin tune measurement
10-8 per 4 seconds
Averaged spin tune can be determined to 10-10 in a single 100s cycle
High-precision spin physics
Prerequisites to get long SCT
Beam bunchingBeam coolingSextupole correction SCT 400s
Envelop of 120 kHz spin precession
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 45
EDM Prototyping and Spin Physics
RF ExB Spin Flipper (2014)
EDM accelerator and detector component tests
Electrostatic Deflector
(2017)SQUID and Cavity BPMs
(ge2014)
Prototype Polarimeter
(ge2015)
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 46
Method of Φ-width measurement
Attenuation measurements of the Φ flux SPring-8 photo-production up-coming CLAS results
Φ survival probability in the nucleus matter rest frame In-medium width deduced from the target mass dependence
D=exp (minusintz
infin
dlΓlowast(ρ(r ))M 0
pΦ) ρ(r )minuslocal nuclear density
SPring-8 LEPS experiment COSY experiment at ANKE
Reaction γA rarr Φ Χ via KK decayγ-Energy 15 ― 24 GeV Targets Li C Al Cu
Result large σФN = 35+17 mb using
Glauber-type multi-scatt theory (free σФN asymp 8-10 mb)
T Ishikawa et al PLB 608 (2005) 215
Reaction pA rarr Φ Χ via KK decayp-Energy 283 GeV ( ε free NNasymp 76MeV )
Targets C Cu Ag Au
Momentum and (06 ― 16) GeVcangular range 0ole Θ
Φle 8o
-11
dominate KK BR =049
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 47
Transparency ratios experiment
Any interpretation of the transparency ratio has to rely on a detailed theoretical treatment
T A=
A
A
NR=
T AT C
=12A
A
C
nuclear transparency ratio
We present the A-dependence of the
Φ production in the following form
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 48
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
Γ tot=Γvac+ Γmed Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 49
Limited sensitivity to in-medium signal
d σV rarr X 1 X 2
d μsimA(μ)
ΓV rarr X 1 X 2
Γtot=
μΓ tot
(μ2minusmV
2)
2+ μ
2Γ tot
2
ΓV rarr X 1 X 2
Γtot
experimental observed mass distribution = convolution of spectral function with the branching ratio into channel being studied
After integration over all nucleons and pa-rameterizing strength function with Breit Wigner
FE
ich
sta
ed
t et al
PT
PS
up
pl 1
68
(20
07
) 49
5
tot= vac med Γmed (ρ(r ))=Γmed (ρ0)ρ(r )ρ0
In the low density approximation
3 effects limit sensitivityi yield reduced by increase of in-medium width (ΓmedgtgtΓvac)
ii reduced yield spreads out in mass difficult to distinguish from backgroundiii decays occur at low densities (ρ ltlt ρ0) even for low momentum selection
Mo
se
lLe
up
old
Me
tag
PT
PS
up
pl 1
86
(20
10
) 26
0
d σV rarr X 1 X 2
d μsim
1ρ2(r )
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 50
Methods of Φ-width measurement
Study of the meson spectral function - measure low momentum Φs via leptonic decays Not really done yet
- Φrarre+e- (BR = 310-4)
- ΦrarrK+K- (BR = 049 K- FSI hadronic potential)
KEK-PS pA 12 GeV Γ asymp 15 MeV m asymp -34)for ltpgt = 18 GeVc
RMuto et al PRL 98 (2007) 042501
Φrarre+e-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 51
Invariant mass spectra for 6 momentum bins
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 52
pA p+CCuAu 283 GeV(ANKE)
phase space distribution of ϕ in ANKE acceptance
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 53
ppppФ (energy dependence)
OZI rule 42times10-3 ROZI
RФω(high energy) asymp (1 - 24)timesROZI
(in agreement with πN data and
the Φρπ and ωρπ coupling)
RФω(185-795 MeV ANKE) asymp 7timesROZI
PRL 96 (2006) 242301
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 54
P Muelich et al NPA 765 (2006) 188
Giessen-BUU calculations (SPring-8 data)
Γfree + Γcoll (~10 mb)
+ acceptance
+ Γdecay (K+K- 2 to 20 MeV)
Γcoll (~10 mb) x 26
(SPring-8)
Γ asymp 80 MeV 18 GeVc Φs
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 55
Valencia calculations (SPring-8-data)
E Oset et al Pramana 66 (2006) 731
Pout=A
A
N
D Cabrera et al NPA 733 (2004) 130
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 56
SPring-8 and up-coming JLAB-g7 (CLAS) result R Nasseripour et al AIP 1056 (2008) 223
ldquoagreementrdquo
CLAS γA rarr Φ(rarre+e-)X
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 57
Momentum dependence of the in-medium Φ-width
ldquoΦ framerdquo ldquonuclear framerdquo
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 58
Determination of for production
0380 0018 (5)
0495 0005 (1)
d2dpd ~ A
At Tp = 283 GeV
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 59
pprarrpK+Y0(1405 width 50MeV)rarrK-p
PRC 77 (2008) 015204PLB 660 (2008) 167
pprarrppK+K- 283 GeV
pprarrpK+(1405) 283 GeV
K-p
Simplest description of the I = 0 coupled-channel system is provided by a separable-potential model [eg PRC 76 (2007) 055204]
Suggests that (1405) is the main doorway state also for ppK+K- (similar conclusion Xie amp Wilkin PRC 82 (2010) 025210 N(1535)(1405)K )
Should analyse and K-p production at the same time
C Wilkin pers communicationarXiv08120098
K-p Invariant mass [MeV]Invariant mass [MeV]
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-
Feb 11 2014 | M Hartmann J-PARC workshop 60
Model elastic K+K- rescattering plus contribution of a K0K0 pair production followed by charge exchange rescattering
PLB 668 (2008) 315K-matrix formalism three basic simplifications (I) constant elements of K-matrix (ii) isospin invariance broken only by K0 ndash K mass difference(iii) distortions are taken only in first order (s-wave scattering formula have transparent interpretations)
ldquoelastic scatteringrdquoldquocharge exchange scatteringrdquo
KK production amplitudes (I=01)
- COSY Report
- Content
- PowerPoint-Praumlsentation
- Results from WASA at COSY
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- HESR Layout at FAIR
- Slide 33
- Slide 34
- Slide 35
- EDMs ndash Ongoing Planned
- Slide 37
- Slide 38
- Slide 39
- Slide 40
- Slide 41
- Storage Ring EDM Project
- Slide 43
- RampD Work at COSY (preliminary)
- EDM Prototyping and Spin Physics
- Slide 46
- Slide 47
- Slide 48
- Slide 49
- Slide 50
- Slide 51
- Slide 52
- Slide 53
- Slide 54
- Slide 55
- Slide 56
- Slide 57
- Slide 58
- Slide 59
- Slide 60
-