1. Exotic hadrons and nuclei with charm flavor
KEK
Shigehiro Yasui
Korea-Japan Workshop on Nuclear and Hadron Physics at J-PARC
@Seoul National University Sep. 2011

2. Contents 1. Introduction 2. Exotic charmed hadrons and nuclei
3. Experimental researches
4. Summary

3. 1. Introduction Many new cc states above threshold quarkonium cc
+ exotic states
quarkonium cc
Eichten in QWG 2008 Nara

4. 1. Introduction Many new cc states above threshold quarkonium cc
+ exotic states
quarkonium cc
Eichten in QWG 2008 Nara

5. 1. Introduction Many new cc states above threshold quarkonium cc
+ exotic states
quarkonium cc
Eichten in QWG 2008 Nara

6. ??? 1. Introduction 3 5 150 200 1500 4700 [MeV] m u d s ΛQCD c b
Chiral Symmetry
Chiral Symmetry
SU(3)L x SU(3)R
SU(4)L x SU(4)R
π, K as Nambu-Goldstone bosons
Chiral multiplets (ρ-a1, N-N*, ...)
Nuclei formed by tensor force
Λ(1405) and K nuclei
Hypernuclei

7. 1. Introduction 3 5 150 200 1500 4700 [MeV] m u d s ΛQCD c b
Heavy Quark
Symmetry
Chiral Symmetry
SU(3)L x SU(3)R
SU(2)spin x SU(Nh)
π, K as Nambu-Goldstone bosons
D-D* (Σc-Σc*, Ξcc-Ξcc*) mass degeneracy (heavy quark sym.)
Chiral multiplets (ρ-a1, N-N*, ...)
More exotics? (like Tcc with no pion decay)
Nuclei formed by tensor force
Λ(1405) and K nuclei
Charmed/Bottomed nuclei ?
Hypernuclei

8. 1. Introduction ｜Strange Nuclei 〉 = U｜Normal Nuclei〉
Strangeness
Hyperons (Λ, Σ, Ξ, ...)
K meson cf. Λ(1405)
neutron
proton
NN systems
Norml Nucleus
U : unitary transformation SU(3)f symmetry
Inoue et al.
PTP124, 591 (2010)
cf. BB system 8 x 8 = 1 + 8s + 8a * + 27

9. 1. Introduction ｜Charmed Nuclei 〉 ≠ U｜Normal Nuclei〉
Baryons (Λc, Σc, Ξcc, ...)
Mesons (ηc, J/ψ, D, ...)
neutron
proton
Norml Nucleus
No unitary transformation U

10. 2. Exotic charmed hadrons and nuclei
D meson and nucleon D
What’s interaction ? N

11. 2. Exotic charmed hadrons and nuclei
Strangeness, Charm, Bottom, ... K N D N B N K N D N B N
SU(3)
SU(4)
SU(5)
Weinberg-Tomozawa
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) ...

12. 2. Exotic charmed hadrons and nuclei
Strangeness, Charm, Bottom, ... K*
K* is almost irrelevant in dynamics...
vector
But D* and B* are new ingredients!
400 MeV D* B*
140 MeV
pseudo-
scalar
45 MeV K D B
500 MeV
1870 MeV
5280 MeV
Chiral Symmetry
Heavy Quark Symmetry

13. 2. Exotic charmed hadrons and nuclei
Strangeness, Charm, Bottom, ...
KN interaction D(B)N interaction N K
p, ω, ρ N
D(*) N
B(*)
p, ω, ρ
p, ω, ρ
One pion is absent.
(short range force)
One pion is present.
(long range force)
Weinberg-Tomozawa
One pion exchange potential
(OPEP)
SY and Sudoh, PRD80, (2009)
Yamaguchi, Ohkoda, SY, Hosaka, PRD84, (2011)

14. 2. Exotic charmed hadrons and nuclei
D and nucleon
Heavy Quark Symmetry
D(*) N
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)
D(*)D(*)π vertex
p, ω, ρ
with
vector + pseudoscalar
P=D, B
D(*)D(*)ω and D(*)D(*)ρ vertex
D(*) N
R. Casalbuoni et al,
Phys. Rep. 281, 145 (1997)
Cf. NNπ, NNω, NNρ vertex from Bonn potential
R. Machleidt et al,
Phys. Rep. 149, 1 (1987)

15. 2. Exotic charmed hadrons and nuclei
D and nucleon
Heavy Quark Symmetry
D(*) N
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)
D(*)D(*)π vertex
from Γ(D*→Dπ)
p, ω, ρ
with
vector + pseudoscalar
P=D, B
D(*)D(*)ω and D(*)D(*)ρ vertex
from leptonic and radiative decay of B
D(*) N
R. Casalbuoni et al,
Phys. Rep. 281, 145 (1997)
Cf. NNπ, NNω, NNρ vertex from Bonn potential
R. Machleidt et al,
Phys. Rep. 149, 1 (1987)

16. 2. Exotic charmed hadrons and nuclei
D and nucleon
Heavy Quark Symmetry
D(*) N
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)
D(*)D(*)π vertex
from Γ(D*→Dπ)
p, ω, ρ
with
vector + pseudoscalar
P=D, B
D(*)D(*)ω and D(*)D(*)ρ vertex
from leptonic and radiative decay of B
D(*) N
R. Casalbuoni et al,
Phys. Rep. 281, 145 (1997)
Cf. NNπ, NNω, NNρ vertex from Bonn potential
R. Machleidt et al,
Phys. Rep. 149, 1 (1987)

17. 2. Exotic charmed hadrons and nuclei
D and nucleon
Form factor at each vetex
D(*) N
p, ω, ρ
ΛD,BΛN = (rD,B/rN)-1
rD,B,N : hadron size from quark model
D(*) N
ΛN for NNπ(ρ,ω) vertex is fixed to reproduce a deuteron.
SY and Sudoh, PRD80, (2009)
Yamaguchi, Ohkoda, SY, Hosaka, PRD84, (2011)

18. 2. Exotic charmed hadrons and nuclei
D and nucleon
D and nucleon
D*+N (2947 MeV)
D*+N (2947 MeV)
No other channels → Only DN and D*N
D+N (2803 MeV)
D+N (2803 MeV)
Σc(2800) 1(??)
π+Σc* (2658 MeV)
Λc(2625) 0(3/2-)
Λc(2595) 0(1/2-)
π+Σc (2593 MeV)
`Pentaquark-channel‘
`Λ*-channel‘
SY and Sudoh, PRD80, (2009)
Yamaguchi, Ohkoda, SY, Hosaka, PRD84, (2011)

19. 2. Exotic charmed hadrons and nuclei
D and nucleon
I(JP)=0(1/2-)
DN(2S1/2), D*N(2S1/2), D*N(4D1/2)
SY and Sudoh, PRD80, (2009)
Yamaguchi, Ohkoda, SY, Hosaka, PRD84, (2011)

20. 2. Exotic charmed hadrons and nuclei
D and nucleon
I(JP)=0(1/2-)
DN(2S1/2), D*N(2S1/2), D*N(4D1/2)
I(JP)=0(3/2-)
DN(2D3/2), D*N(4S3/2), D*N(4D3/2), D*N(2D3/2)
SY and Sudoh, PRD80, (2009)
Yamaguchi, Ohkoda, SY, Hosaka, PRD84, (2011)

21. 2. Exotic charmed hadrons and nuclei
D and nucleon
I(JP)=0(1/2-)
DN(2S1/2), D*N(2S1/2), D*N(4D1/2)
+ ω, ρ pot.
I(JP)=0(3/2-)
DN(2D3/2), D*N(4S3/2), D*N(4D3/2), D*N(2D3/2)
+ ω, ρ pot.
SY and Sudoh, PRD80, (2009)
Yamaguchi, Ohkoda, SY, Hosaka, PRD84, (2011)

22. 2. Exotic charmed hadrons and nuclei
D and nucleon
D*N
140 MeV
B*N
45 MeV DN BN
DN bound state
B.E. 2 MeV
BN bound state
B.E. 22 MeV
I(JP)=0(1/2-)
I(JP)=0(1/2-)
SY and Sudoh, PRD80, (2009)
Yamaguchi, Ohkoda, SY, Hosaka, PRD84, (2011)

23. 2. Exotic charmed hadrons and nuclei
D and nucleon
D*N
20 MeV
DN resonance
Γ = 17 MeV
140 MeV
I(JP)=0(3/2-) DN
SY and Sudoh, PRD80, (2009)
Yamaguchi, Ohkoda, SY, Hosaka, PRD84, (2011)

24. 2. Exotic charmed hadrons and nuclei
D and nucleon
D*N
20 MeV
DN resonance
Feshbach resonance
Γ = 17 MeV
140 MeV
I(JP)=0(3/2-) DN
SY and Sudoh, PRD80, (2009)
Yamaguchi, Ohkoda, SY, Hosaka, PRD84, (2011)

25. 2. Exotic charmed hadrons and nuclei
D and nucleon
D*N
20 MeV
DN resonance
Γ = 17 MeV
140 MeV
I(JP)=0(3/2-)
B*N
8 MeV
BN resonance
45 MeV DN
Γ = 0.13 MeV BN
I(JP)=0(3/2-)
SY and Sudoh, PRD80, (2009)
Yamaguchi, Ohkoda, SY, Hosaka, PRD84, (2011)

26. 2. Exotic charmed hadrons and nuclei
D and nucleon
D*N
20 MeV
DN resonance
Γ = 17 MeV
140 MeV
I(JP)=0(3/2-)
B*N
8 MeV
BN resonance
45 MeV DN
Γ = 0.13 MeV BN
I(JP)=0(3/2-)
I(JP)=0(1/2-)
bound state
I(JP)=0(3/2-)
narrow resonance state
SY and Sudoh, PRD80, (2009)
Yamaguchi, Ohkoda, SY, Hosaka, PRD84, (2011)

27. 2. Exotic charmed hadrons and nuclei
BN state
DN state
6263 MeV
2946 MeV
D*N
B*N
6217 MeV BN
H dibaryon
2255 MeV
2807 MeV ΞN DN ΛΛ
2230MeV
Λ(1405) KN πΣ
1433 MeV
1330 MeV

28. 2. Exotic charmed hadrons and nuclei
BN state
DN state
6263 MeV
2946 MeV
D*N
B*N
6217 MeV BN
H dibaryon
2255 MeV
2807 MeV ΞN DN
Charm/Bottom nuclei ΛΛ
2230MeV
Λ(1405) KN πΣ
1433 MeV
1330 MeV
Hypernuclei
K nuclei

29. 3. Experimental researches
Exotic hadrons from heavy ion collisions at RHIC and LHC

30. 3. Experimental researches
Exotic hadrons from heavy ion collisions at RHIC and LHC
Nucleus
Nucleus

31. 3. Experimental researches
Exotic hadrons from heavy ion collisions at RHIC and LHC
QGP
Nucleus

32. 3. Experimental researches
Exotic hadrons from heavy ion collisions at RHIC and LHC
Hadron phase
p, Λ, ...
π, K, ...
f0, a0, ...
Λ3H
Exotics?
STAR (2003)
STAR (2010)
QGP

33. 3. Experimental researches
Exotic hadrons from heavy ion collisions at RHIC and LHC
Hadron phase
p, Λ, ...
π, K, ...
f0, a0, ...
Λ3H
Exotics?
STAR (2003)
STAR (2010)

34. ExHIC (Exotics from Heavy Ion Collisions) collaboration
3. Experimental researches
Yields of exotic hadrons at RHIC and LHC
S. Cho et al. (the ExHIC collaboration), PRL106, (2011)
ExHIC (Exotics from Heavy Ion Collisions) collaboration
S. 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)

35. 3. Experimental researches
Hadron molecule vs. multi-quark
Hadron molecule 1
Normal hadron
0.2
Multi-quark

36. 3. Experimental researches
CERN, 2 Dec J. Schukraft

37. 3. Experimental researches
CERN, 2 Dec J. Schukraft

38. 4. Summary ・ Heavy quarks have new symmetry and dynamics.
Heavy quark symmetry
D-D* mixing
...
・ DbarN bound and resonance states are studied.
・ Researches in e+e-, pp (ppbar) and heavy ion collisions
will be interesting.