From hadrons to nuclei with charm and bottom flavors
description
Transcript of From hadrons to nuclei with charm and bottom flavors
From hadrons to nuclei with charm and bottom flavors
S. YasuiKEK
Baryon 10@Osaka 2010.12.7-11
Contents
1. Introduction
2. New exotic heavy hadrons New charm tetraquarks and others...
3. Charm exotic nuclei Exotic nuclei with flavors beyond strangeness
4. Experimental researches Relativistic Heavy Ion Collisions
5. Summary
Eichten in QWG 2008 Nara
Many new cc states above threshold
1. Introduction
1. Introduction
X(3872), X(3940), Y(4260), Z(4430)+, ... Yb ,...
ccd
u
Z(4430)+Y(4260)
c
cgc
cu
u
X(3872)
ccd
u
ccg hybridS. L. Zhu (2005)
Why are they exotic?- extraordinaly decay widths and branching ratios- mass difference from cc in quark model ( 〜 100 MeV)
DD* (ccuu) molecule Tornqvist (1991)
ccudreally tetraquark
ccudreally tetraquark
DD* threshold ? gluon dynamics ? something new? diquark correlation ?
Tcc1
2. New exotic heavy hadrons
Hc cuuuds
Tcc ccudΘcs cuuds
Carlson, Heller, Tjon (1988)Silvestre-Brac and Semay (1993)Manohar and Wise (1993)...Lee, SY, Liu and Ko (2008)Lee and SY (2009)
Tcc1 is „explicitly“ exotic.
ccd
u
Tcc1
Tetraquark Tcc(ccud)2. New exotic heavy hadrons
ccd
u
Tcc1
dc+
Spin-color int. sBa (a=1,..,8) induces
cc pair
cu pair
ud pair
1/mQ2
1/mQ1
1/mQ0
Tetraquark Tcc(ccud)
?
dominant attraction (3c, 3f, s=0)
further suppressed
D*-D0
uc
2. New exotic heavy hadrons
suppressed
ccd
u
Tcc1
dc+
Spin-color int. sBa (a=1,..,8) induces
Tetraquark Tcc(ccud)
D*-D0
uc
2. New exotic heavy hadrons
cc pair
cu pair
ud pair
1/mQ2
1/mQ1
1/mQ0 dominant attraction (3c, 3f, s=0)
further suppressed
suppressed
No strong decay
ccd
u
Tcc1
dc+
Tetraquark Tcc(ccud)
D*-D0
uc
B.E.
S=0
S=-1 -4 MeV
-74 MeV
Tcc1
2. New exotic heavy hadrons
Tcc1
scuc +
Tetraquark Tcc(ccud)
Ds*-D0
ccs
u
B.E.Tcc1
S=0
S=-1 -4 MeV
-74 MeV
2. New exotic heavy hadrons
Tcc1
scuc +
Tetraquark Tcc(ccud)
Ds*-D0
ccs
u
B.E.Tcc1
S=0
S=-1 -4 MeV
-74 MeV
→ Tcc1 form 3f multiplet.
2. New exotic heavy hadrons
2. New exotic heavy hadrons
sc
du u
ΘcsΛ
dus
uc
D0
+
Pentaquark Θcs(cudus)
B.E.
S=-1
S=-2 +8.4 MeV
+8.4 MeV
Θcs
→ Θcs may form 3f multiplet.
2. New exotic heavy hadrons
2. New exotic heavy hadrons
u
Dibaryon Hc(udusuc)
sc
du u
HcΛc
duc
Σ
+ suu
B.E.
S=-1
S=-2
-17.4 MeV
-17.3 MeV
Hc
a little weak,but still attractive
S=-3
-28.9 MeV
2. New exotic heavy hadrons
Hc
Dibaryon Hc(udusuc)
6f
2. New exotic heavy hadronsLee and SY, Eur. Phys. J. C64, 283 (2009)
Hc Hb
Dibaryon Hc(udusuc)
6f 6f
2. New exotic heavy hadronsLee and SY, Eur. Phys. J. C64, 283 (2009)
Hc Hb H’cb
Dibaryon Hc(udusuc)
6f 6f
3f
2. New exotic heavy hadronsLee and SY, Eur. Phys. J. C64, 283 (2009)
Hc Hb
Hcb
H’cb
Dibaryon Hc(udusuc)
6f 6f
3f
15f
2. New exotic heavy hadronsLee and SY, Eur. Phys. J. C64, 283 (2009)
Hc Hb
Hcb
H’cb
Hccb
Dibaryon Hc(udusuc)
6f 6f
3f
15f8f
2. New exotic heavy hadronsLee and SY, Eur. Phys. J. C64, 283 (2009)
→ Hc, Hb, H’cb, Hcb and Hccb form many multiplets!
Hc Hb
Hcb
H’cb
Hccb
Dibaryon Hc(udusuc)
6f 6f
3f
15f8f
2. New exotic heavy hadronsLee and SY, Eur. Phys. J. C64, 283 (2009)
3. Charm exotic nuclei
D nuclei
What are charm/bottom nuclei?
Nucleusproton
neutron
Charm/Bottom
3. Charm exotic nuclei
Charm/Bottom
Nucleusproton
neutron
Dover-Kahana (1977)Iwao (1977)Gatto-Paccanoni (1978)Bando-Bando (1982)...
Baryons Λc, Σc, Λb, Σb, …
What are charm/bottom nuclei?
3. Charm exotic nuclei
Nucleusproton
neutron
Charm/Bottom
Mesons hidden : ηc, J/ψ, ηb, Υ, … open : D, D*, B, B*, …
What are charm/bottom nuclei?
3. Charm exotic nuclei
Nucleusproton
neutron
Charm/Bottom
Mesons hidden : ηc, J/ψ, ηb, Υ, … open : D, D*, B, B*, … Brodsky-Schmidt-Teramond (1990)Luke-Manohar-Savage (1992)Yokokawa-Sasaki-Hatsuda--Hayashigaki (2006)Kawanai-Sasaki (2010)...
What are charm/bottom nuclei?
3. Charm exotic nuclei
Nucleusproton
neutron
This is our subject!
Charm/Bottom
Mesons hidden : ηc, J/ψ, ηb, Υ, … open : D, D*, B, B*, …
What are charm/bottom nuclei?
3. Charm exotic nuclei
3. Charm exotic nuclei
N
D (B)
??
Q. What is the interaction between D (B) and N ?
3. Charm exotic nuclei
NK
K N
SU(3)
ND
D N
NB
B N
Weinberg-Tomozawa
SU(4) SU(5)
Lutz-Kolomeitsev (2004), Hoffmann-Lutz (2005), Mizutani-Ramos (2006), Gamermann-Oset-Strottman-Vacas (2007), Haidenbauer-Krein-Meissner-Sibirtsev (2007), Tolos-Molina-Gamermann-Gracia-Reico-Nieves-Oset-Ramos (2010) ...
Strangeness, Charm, Bottom, ...
3. Charm exotic nuclei
D BK
K*
D*B*
400 MeV
140 MeV 45 MeV
D* and B* are new ingredients!
Chiral Symmetry Heavy Quark Symmetry
500 MeV 1870 MeV 5280 MeV
K* is almost irrelevant in dynamics.
pseudo-scalar
vector
3. Charm exotic nuclei
Strangeness, Charm, Bottom, ...
NK
K N
p, ω, ρ
Weinberg-Tomozawa One pion exchange potential (OPEP)
ND(*)
D(*) N
NB(*)
B(*) N
One pion is absent.(short range force)
One pion is present. (long range force)
KN interaction D(B)N interaction
p, ω, ρ p, ω, ρ
3. Charm exotic nuclei
Strangeness, Charm, Bottom, ...
S. Y. and K. Sudoh, PRD80, 034008 (2009)
with
G. Burdman and J.F. Donoghue (1992)M.B. Wise (1992)T.-M. Yan, H.-Y. Cheng, C.-Y. Cheung, G.-L. Lin, Y.C. Lin and H.-L. Yu (1997)
vector + pseudoscalar
One pion exchange potential (OPEP)
Heavy Quark Symmetry
D(*)
D(*)
N
N
OPEP
p, ω, ρ
P=D, B
S. Y. and K. Sudoh, PRD80, 034008 (2009)
3. Charm exotic nuclei
N
D (B)
??
Q. Are there bound states of D (B) and N ?
D(cq)-N(qqq)B(bq)-N(qqq) * No annihilation process
3. Charm exotic nuclei
JP=1/2-, I=0
strong tensor coupling
wave functions obtained by variational method
DN (2S1/2)
D*N (4D1/2)
D*N (2S1/2)
PRELIMINARY RESULTS
OPEP+ contact int.
3. Charm exotic nuclei
JP=1/2-, I=0
strong tensor coupling
wave functions obtained by variational method
DN (2S1/2)
D*N (4D1/2)
D*N (2S1/2)
DN π +cont.A +cont.B B.E. [MeV] 10.8 6.6 8.2 r [fm] 1.7 2.1 1.9
PRELIMINARY RESULTS
OPEP+ contact int.
3. Charm exotic nuclei
BN bound state170 MeV
KN (pentaquark?)
threshold
100 MeV
cqqqq bqqqqsqqqq
Strangeness Charm Bottom
DN bound state
|DN; I=0> = |D-p> + |D0n> + |D*-p> + |D*0n>
K+ π - π - pweak decay D*→Dπ is closed.
DN and BN bound states JP=1/2- (I=0)
10 MeV
3. Charm exotic nuclei
K + N D + N B + N
Λ(1405)
KN
πΣ
1433 MeV
1330 MeV
ΞN
ΛΛ
2255 MeV
2230MeV
H dibaryon
BN6217 MeVBN state
DN2807 MeV
DN stateB.E. 170 MeV
B.E. 10 MeV
3. Charm exotic nuclei
Λ(1405)
KN
πΣ
1433 MeV
1330 MeV
ΞN
ΛΛ
2255 MeV
2230MeV
H dibaryon
BN6217 MeVBN state
DN2807 MeV
DN state
K nuclei
Hypernuclei
Charm/Bottom nuclei
B.E. 170 MeV
B.E. 10 MeV
3. Charm exotic nuclei
A=2 charmed (bottom) nucleus ?
D (B)
NN
Q. Are there exotic nuclei with D (B) ?
3. Charm exotic nuclei
DNN and BNN systems
D(*)
NN
Classification of statesJP=0-
JP=1-
I=1/2
I=3/2
I=1/2
I=3/2
|D(NN)S=0,I=1> + |D*(NN)S=1,I=0>
|D(NN)S=0,I=1>
|D(NN)S=1,I=0> + |D*(NN)S=1,I=0> +|D*(NN)S=0,I=1>
|D(NN)S=0,I=1>
S=1/2I=0
S=1/2I=0
S. Y. and K. Sudoh,PRD80, 034008 (2009)
3. Charm exotic nuclei
DNN and BNN systems
Classification of statesJP=0-
JP=1-
I=1/2
I=3/2
I=1/2
I=3/2
|D(NN)S=0,I=1> + |D*(NN)S=1,I=0>
|D(NN)S=0,I=1>
|D(NN)S=1,I=0> + |D*(NN)S=1,I=0> +|D*(NN)S=0,I=1>
|D(NN)S=0,I=1>
3/4 1/4
0
1/4 1/6 1/4
0
Fraction of (D(*)N)S=1/2,I=0
D(*)
NN
S=1/2I=0
S=1/2I=0
3. Charm exotic nuclei
S. Y. and K. Sudoh,PRD80, 034008 (2009)
DNN and BNN systems
Classification of statesJP=0-
JP=1-
I=1/2
I=3/2
I=1/2
I=3/2
|D(NN)S=0,I=1> + |D*(NN)S=1,I=0>
|D(NN)S=0,I=1>
|D(NN)S=1,I=0> + |D*(NN)S=1,I=0> +|D*(NN)S=0,I=1>
|D(NN)S=0,I=1>
3/4 1/4
0
1/4 1/6 1/4
0
Fraction of (D(*)N)S=1/2,I=0
D(*)
NN
S=1/2I=0
S=1/2I=0
weak decayK+ π- π- + p + p
weak decay K+ π- π- + d
Cf. D- → K+ π- π-
3. Charm exotic nuclei
S. Y. and K. Sudoh,PRD80, 034008 (2009)
4. Experimental researches
Relativistic Heavy Ion Collisions
Relativistic heavy ion collisions as sources of multi-particles
3. Experimental researches
Nucleus Nucleus
RHIC/LHC
3. Experimental researches
Relativistic heavy ion collisions as sources of multi-particles
Nucleus Nucleus
QGP
RHIC/LHC
3. Experimental researches
Relativistic heavy ion collisions as sources of multi-particles
Hadron phase
QGP
RHIC/LHC
p, Λ, ...
π, K, ...
f0, a0, ...
Λ3H
Exotics?
STAR (2003)
STAR (2010)
3. Experimental researches
Relativistic heavy ion collisions as sources of multi-particles
Hadron phasep, Λ, ...
π, K, ...
f0, a0, ...
Λ3H
Exotics?
STAR (2003)
STAR (2010)
RHIC/LHC
3. Experimental researches
Relativistic heavy ion collisions as sources of multi-particles
yields of hadrons from heavy ion colisions
ExHIC (Exotics from Heavy Ion Collisions) collaborationS. Cho (Yonsei U.), T. Furumoto (YITP and RIKEN), T. Hyodo (Tokyo Inst. Technology), D. Jido (YITP), C.-M. Ko (Texas A&M U.), S. H. Lee (Yonsei U. and YITP), M. Nielsen (U. de Paulo), A. Ohnishi (YITP), T. Sekihara (YITP and Kyoto U.), K. Yazaki (YITP and RIKEN), S. Y. (KEK)
S. Cho et al. (the ExHIC collaboration), arXiv:1011.0852 [nucl-th]
3. Experimental researches
S. Cho et al. (the ExHIC collaboration), arXiv:1011.0852 [nucl-th]
Normal hadron0.2
1
Hadron molecule
Multi-quark
3. Experimental researches
S. Cho et al. (the ExHIC collaboration), arXiv:1011.0852 [nucl-th]
Normal hadron0.2
1
Hadron molecule
Multi-quark
3. Experimental researches
More details→ Ohnishi-san‘s talk on Friday!!
CERN, 2 Dec. 2010 J. Schukraft
3. Experimental researches
CERN, 2 Dec. 2010 J. Schukraft
3. Experimental researches
CERN, 2 Dec. 2010 J. Schukraft
3. Experimental researches
5. Summary
・ Exotic charmed hadrons are interesting !
・ New exotic charmed hadrons Tcc, Θcs, Hc, ...
・ Charm exotic nuclei D-meson nuclei
・ Experimetal researches Belle, J-PARC, GSI, RHIC/LHC, ...