Post on 26-Mar-2015
Neutrino experiments
No of PL participants
Gallex/GNO 1997 - 2001 1 Super- Kamiokande 1996 - 1-2 K2K (KEK to Kamioka) 1998 – 2005 2 Borexino 1994 - 2 Icarus 2000 - 36* Gerda 2004 - 1
Also considered: T2K (T2k-LAr) LOI GLACIER R&D
Danuta Kiełczewska Warsaw University &A.Sołtan Institute of Nuclear StudiesExperiments with
involvement of PL groups:
Also individualparticipation in Minos
02finallya significantPL contribution
(some part-time)
Polish neutrino groups Senior (18)
Junior(21) (incl
PhD,MSc)Katowice University of Silesia US J. Kisiel, W. Zipper 2
Kraków:Cracow University of Technology H. Kuna-Ciskal, M. MaślakInstitute of Nuclear Physics IFJ A. Dąbrowska, J. W. Mietelski, 4
M. Szarska, A. ZalewskaJagellonian University UJ M. Wójcik 2Univ. of Science and Technology AGH R. Rumian 1
Warszawa Institute for Nuclear Studies IPJ T. Kozłowski, E. Rondio, 3
J. Stepaniak, M. SzeptyckaWarsaw University WaU W. Dominik, D. Kiełczewska 4Warsaw University of Technology K. Zaremba 1
WrocławWrocław University WrU J. Sobczyk 4
(Neutrino phenomenology)
PhD theses:
1) G. Żużel, Jagellonian Univ., 2002, „Rn-226 as a background source in Borexino”,2) B. Beckman, University of Silesia, 2004
„Neutrino properies from supernova explosion”
Completed:
Current (9):
A. Ankowski Wrocław University Theory of neutrino interactionsK. Graczyk as above as aboveJ. Nowak as above as above
J. Łagoda Warsaw University IcarusW. Półchłopek AGH Icarus P. Przewłocki IPJ Icarus, T2K-LAr S. Stach US IcarusA. Szelc IFJ Dark Matter, LAr TPCJ. Zalipska IPJ K2K
Master theses (MSc) :
G. Żużel, UJ Borexino 1998U. Gołębiewska, WaU Super-Kamiokande 1998M. Misiaszek, UJ Borexino 2000J. Pasternak, WrU Pion production for a neutrino factory , 2000J. Nowak WrU CP violation in neutrino interactions, 2001
A. Moryc, WaU/IPJ Super-Kamiokande 2001
K. Cieślak, WaU/IPJ Super-Kamiokande 2001M. Barańska WaU/IPJ Super-Kamiokande 2001
P. Przewłocki, WaU/IPJ Super-Kamiokande 2002
D. Rytter WaU/IPJ Super-Kamiokande 2002A. Maszczyk, UJ Borexino (SNO) 2002P. Brylski, IFJ Icarus 2003P. Lipiński, UJ Borexino 2003M. Kołodziej US Icarus 2004S. Stach US Icarus 2004A. Ankowski, WrU „ QE neutrino interactions”, 2004A. Szelc , IFJ Dark Matter in LAr 2004D. Stefan, IFJ Icarus 2004
Completed:18
Review of experiments
Super-Kamiokande
~ 140 authors
JAPANUSAKOREAPOLAND
Institutions
1614 3 1
Discovery of oscillation of atmospheric neutrinos (1998)(the most often cited high energy experimental paper
in the SLAC HEP database (>2200 citations)
First „neutrino-graphy” of the Sun Search for proton decays Search for Dark Matter (via neutralino annihilation)
(Warsaw University)
Oscillation of atmospheric neutrinos in SK
2 2
2
0.0019 0.0030 eV
sin 2 0.90 at 90% . .c l
m
Oscillation
Decay Decoherence
Evidence for oscillationOscillation parameters
NN Result: a = 1.95 ± .63b = 1.03 ± .06
Expected #:26.8 fitted #:52 ± 17
Signal Eff: 34%Total number of tau = 155(total exp’d=79)
BGb+Taua=θf cos
Search for tau appearance in SK
Preliminary
Atmospheric:
Zenith angle P.P. – MSc thesis 2002
A sample enriched in tau.
Deficit of solar neutrinosDeficit of solar neutrinos(also with participation of PL groups)
JagellonianUniversity
WarsawUniversity
K2K - KEK to Kamioka K2K - KEK to Kamioka
250 km~ 160 authors36 institutions(2 from Pl: Wa U, IPJ)
A beam of of energy around 1 GeVCompared at near detectors and at SK.
Near Detectors at KEKNear Detectors at KEK
SciBar
PL contribution:• Construction of SciFi• Cher. light calibration• Particle identification PhD student on site
Observation of oscillation in K2KObservation of oscillation in K2K
for 103.8
events 151 :expected
events 107 :observed1210
Final result:
w/o oscill.
22
2
eV0028.0
0.12sin
m
effect4
A combination of oberved:
• event deficit• spectrum
A summary of the oscillation
measurements:
845
6.13.32
23
12
13
2 20.00005 eV 0.00008 eVsolarm
2 20.0019 eV 0.003 eVatmm
Mixing:
NOT max
max
Future measurements:
Better precision for:
122322 solaratm mm
Sign of:2atmm appearance
Borexino
To be filled with water at the end of 2005, and finally with scintillator in 2006
To study Be solar neutrinos.in Gran Sasso Lab.
17 Institutionsincl: Jagellonian University-Selection of low radioactivity materials.
Nucleon stability p e++
Supernova neutrinos
Solar neutrinos
A modular approach : T600 + T1200 +T1200 to reach the design mass
Long Baseline neutrinos
Icarus LAr TPC detector and physics program
P. Sala
Atmospheric neutrinos
The ICARUS Collaboration
ITALY: L'Aquila, LNF, LNGS, Milano, Napoli, Padova, Pavia, Pisa, CNR Torino, Politec. Milano. L'Aquila, LNF, LNGS, Milano, Napoli, Padova, Pavia, Pisa, CNR Torino, Politec. Milano.
SWITZERLAND:SWITZERLAND: ETH/Zürich. ETH/Zürich.
CHINA:CHINA: Academia Sinica Beijing. Academia Sinica Beijing.
POLAND:POLAND: Univ. of Silesia Katowice, Univ. of Mining and Metallurgy Krakow, Inst. of Nucl. Phys. Univ. of Silesia Katowice, Univ. of Mining and Metallurgy Krakow, Inst. of Nucl. Phys. Krakow, Univ. of Technology Krakow, A.Soltan Inst. for Nucl. Studies Warszawa, Warsaw Univ., Krakow, Univ. of Technology Krakow, A.Soltan Inst. for Nucl. Studies Warszawa, Warsaw Univ., Wroclaw Univ.Wroclaw Univ.
USA:USA: UCLA Los Angeles. UCLA Los Angeles.
SPAIN:SPAIN: CIEMAT, Univ. of Granada. CIEMAT, Univ. of Granada.
RUSSIA:RUSSIA:Dubna, INR (Moscow) Dubna, INR (Moscow)
25 institutions, 145 physicists
From PL: 7 institutions, 36 physicists
Icarus milestones
2001 - Test in Pavia (with atmospheric muons) 300 tons of LAr (5 papers in 2003-2004) Dec 2004 - T600 successfully transported to Gran Sasso
underground laboratory Dec 22, 2004 – INFN fully approved main orders for T1200 mechanics and cryogenics
A large cryogenic facility, dimensioned for the operation of the full liquid Argon mass is now under construction in the Hall B of the LNGS.
(since PL joined the collaboration in 2000)
T600 analysis: π0 mass reconstruction
tt00 = 12.4 = 12.4 s, s, e e = 1.65 ms= 1.65 ms
E(E(11) = 182.5) = 182.5±±22.2 MeV22.2 MeV
E(E(22) = 180.8) = 180.8±±20.1 MeV20.1 MeV
Run 712 Evt 7 (Left Collection View)
MM = 150.6 = 150.6±±11.8 11.8 MeV/cMeV/c22
51 0 candidate events
= 40= 40ºº
Main vertex
Poland+ Pavia analysis
Preliminary
in agreement with expectede.m. resolution!
comb. backgroundin events
with > 2 showers
Polish participation in Icarus
Test in Pavia• One of the triggers was prepared by PL groups.• Shifts• Data analysis: - study of the propagation of scintillation light
- reconstruction of 0 events - reconstruction of muon energies - data compression
Icarus in LNGS (examples) • modification of the readout electronics• neutrino interactions (analytical and MC) • procedures for tau event selection• a check of mechanical parameters for cryostats
Production of anode wires for next modules
Anode wires for T1200 - production in
Poland Present status: • All the equipment has been constructed, purchased or borrowed from Pavia with many improvements as compared to the original Pavia setup for the wire production of T600.• Common work of the experimental groups from Warsaw, Katowice and Cracow, in close collaboration with the Pavia group.• Laboratory in Cracow (12x5.5 m2) prepared for production.
P. Sala
Funding (w/o institutes budgets)
Year NATO TARI PL-I grants
exchange (euros) (man-days in
LNGS)
2001 70002002 4700 90 802003 210 802004 280 402005 150 40
Year SPUB Research (Icarus) grants1996 10 1997 10 1998 30 1999 65 2000 55 2001 85 2002 260 2003 181 2004 2 134 210 2005 127
-------- 1033
PL funding (KBN)(in thousands of PL zl)
From foreign sources
Participation in SK/K2K has been possible thanks to constant support
by University of Calif., Irvine SPUB: special projects and equipment
TARI: Transnational Access to major Research Infrastructure EUPL-I: PL- Italian bilateral agreements
Plans for future
T2K (T2K-LAr)
GLACIER
T2K (Tokai to Kamioka)
Dec.2002 : LOI submitted to J-PARC office signed by45 physicists from Japan, 110 physicists from:Canada, China, France, Italy, Korea, Poland, Russia, Spain,Switzerland, UK and USA
K. Nishikawa, Venice 2003
beam of <1GeV
0.75 MW 50 (40) GeV PS
4MW 50GeV PS
→ → xx disappearance
→ → ee appearance NC measurement
CP violation proton decay
T2K detectors
100 ton LAr TPC:(together with other European groupsand coordinated byA. Rubbia) LOI is now
preparedwith PLparticipation
SK
For precision measurement of:• cross sections• beam contamination
T2K Schedule
Possible future upgrade:– 4MW Super-J-PARC + Hyper-K (1Mt)– CP violation in lepton
sector– Proton Decay
2004 2005 2006 2007 2008
SK full rebuild
T2K construction physics run K2K
2009
PS commisionning
132 2sin
Sensitivity to
down to 0.006
R&D for the future giant LiAr detector for neutrino physics and searches of proton decays (coordinated by A.Rubbia from ETH Zurich).
GLACIER
A possible location of an underground laboratory: a salt rock of the Sieroszowice copper mine (details from A. Zalewska).
Two-phase (liquid and gas) Ar detector
Measurements by J.W.Mietelski, E.Tomankiewicz and S.Grabowska (IFJ) and J.Kisiel, J.Dorda (US):
(2.1 0.3) Bq/kg for 40K
(0.36 0.06) Bq/kg for nuclides from the U chain
(0.11 0.02) Bq/kg for nuclides from the Th chain
Very low radioactivity:
Summary
With the discovery of oscillations the interest in neutrino physics has grown considerably:
We have the expertise from the most successful experiments - now we are mostly involved in the
most unique technique for precision measurements (Icarus)
The groups (experimental and theoretical) collaborate very closely - with regular meetings/workshops in Katowice, Kraków, Warszawa or Wrocław. This is very helpful in sharing our expertise in various fields.
We hope to have the resources to participate significantly in the most important neutrino experiments.
We have also dreams for an underground laboratory in PL
9 institutions, 39 physicists (18 senior & 21 junior)