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Su Houng Lee 1. Introduction to Multiquark states 2. Few random comments with Bag model

Multiquark Production from Heavy Ion Collisions. Su Houng Lee 1. Introduction to Multiquark states 2. Few random comments with Bag model 3. Crypto-Exotics from Heavy Ion Collisions 4. Heavy Exotics from Heavy Ion Collisions. Acknowledgement: S. Cho and ExHIC collaboration.

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Su Houng Lee 1. Introduction to Multiquark states 2. Few random comments with Bag model

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  1. Multiquark Production from Heavy Ion Collisions Su Houng Lee 1. Introduction to Multiquark states 2. Few random comments with Bag model 3. Crypto-Exotics from Heavy Ion Collisions 4. Heavy Exotics from Heavy Ion Collisions Acknowledgement: S. Cho and ExHIC collaboration

  2. I: Introduction to Multiquark states

  3. Recent highlights on Multi-quark hadrons – Heavy quark sector Babar: DSJ(2317) 0+ Puzzle in Constituent Quark Model(2400) • D0 K+ (2358) threshold effect • Chiral partner of (0- 1-) • Tetraquark Belle molecule ? X(3872) G<10 MeV , Y(4260), Z(4430) G<50  y’p Z(4051),Z(4248) cc1p Zb(10610), Zb(10650)  Up

  4. Previous work on Multi-quark hadrons – light quark sector Scalar tetraquark (Jaffe 76) L(1405) (coupled channel) N S K p + Search for Q+ pentaquark Search for H dibaryon

  5. Normal meson, Tetraquark and Molecule Navara, Nielsen, SHLee Phys Rept (11) u u u u u u d d u d

  6. II: Few random comments with Bag model

  7. Naïve Bag Model for Multiquark states u u u d u d

  8. Outside pressure is balanced by thermal quark gluon pressure Naïve Bag Model for phase transition 1. Phase transition in MIT Bag model  Sudden increase in E at Tc Lattice data F. Karsch hep-lat/0106019

  9. 2. Tc decreases when dynamical quarks are added; Tc 270  190 MeV  Also true in Bag model • In pure Gauge Theory • With Nf flavor

  10. QCD vacuum inside and outside the Bag Quark-gluon Plasma Thermal pressure = B MIT Bag Quark kinetic energy = B SHLee PRD(89)

  11. III: Crypto-Exotics from Heavy Ion Collision Identifying Crypto Exotics from usual hadronic configuration and/or molecular configuration

  12. Hadron formation in hadronic collision Hadron production in ( p+pC+X ) collision c C u b DC/c Gb/p d p c u b ds g a d Ga/p d p c u a X

  13. QGP formation and Hadronization in Heavy Ion Collision T>Tc T=Tc

  14. Statistical Model (PB Munzinger, Stachel, Redlich) Yields of Normal hadrons Freezeout points

  15. Hadron production in HIC: Coalescence model u u d s u d M d c d u s d c u c u c d PT dependence of ratio Quark number scaling of v2 v4 Ko et al Ko et al Ko et al

  16. Coalescence model : for things with structures Success of Coalescence model Coalescence model = Statistical model + overlap Suppression of p-wave resonance (Muller and KadanaEn’yo) u u d s u d M c d u s d d c u c u c d

  17. Hadron production through coalescence u d d u u Normal meson [overlap]=1 u d u u s u d d d s u d s u d d s u u u d d d u d d d u d u u u Molecular configuration: [overlap]=1 d u u u d s Tetraquark configuration [overlap]<<1

  18. S. Cho et al PRL 11 Fachini [STAR] 5 x Stat 0.2 x Stat

  19. IV: Heavy Exotics from Heavy Ion Collision

  20. Multiquark configuration • Diquark attracation vs quark-antiquark q1 q3 q2 • diquark picture: Yasui, Ko, Liu, Lee,.. (EJP08,EJP09)

  21. Tetra-quark – hadronic weak decay modes  0- 1- 1+ c u d c c u c d - Binding against decay = - 79.3 MeV

  22. c c Previous works on Tcc Z. Zouzou, B. Silverstre-Brac, C. Gilgnooux, J Richard (86), D. Janc, M. Rosina (04), Y. Cui, S. L. Zhu (07) QCD sum rules: F Navarra, M. Nielsen, SHLee, PLB 649, 166 (2007) simple diquark: SHL, S. Yasui, W.Liu, C Ko EPJ C54, 259 (2008), SHL, S. Yasui: EPJ C (09) Belle: PRL 98, 082001 (07) e+ e-  J/y + X(3904)  D D* Canlook for 1+ (Tcc) e Tcc (3800) X(3904) c Under analysis by Ijima, Kwon, Son c e+ SHL, S Yasui, W Liu, C Ko (08)

  23. New perspective of Hadron Physics from Heavy Ion Collision • large number of c , b quark production • Vertex detector: weakly decaying exotics : FAIR 104 D0 /month, • LHC 105 D0/month • Tcc production Tcc/D > 0.34 x 10 -4 RHIC > 0.8 x 10 -4 LHC

  24. Expectations [overlap] at LHC

  25. L L measurement at KEK (안정근 E224, E522) A continued search for H-dibaryon (K. Imai …)

  26. Summary • Production rates from Heavy Ion collisions can be used to distinguish crypto-exotic configuration, from usual and molecular configuration: f0 can not be a pure multiquark configuration • Heavy multiquark states + Exotics can be observed at LHC 3. Belle can identify explicitly exotic states

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