Physics Opportunities with heavy quark system at FAIR

1. Physics Opportunities with heavy quark system at FAIR Su Houng Lee Yonsei Univ., Korea • Introduction to FAIR • Heavy quark system in nuclear medium • Heavy exotics from heavy Ion collision • Summary

2. Introduction to FAIR Facility for Antiproton and Ion Researchat GSI

3. 2. PANDA: anti proton project (1-15 GeV) charmonium sprectroscopy, origin of hadron mass FAIR • CBM 2-35 GeV Heavy Ion (Gold) projectileQCD phase diagram at high baryon density

4. Heavy quark system in nuclear mediumPhysics with antiproton beam

5. QCD Vacuum Nuclear matter Partial Chiral symmetry restoration in nuclear matter  Could be probed by light vector mesons

6. From Volker Metag’s recent talk Shocking result !! New structure appearing?

7. QCD Vacuum Nuclear matter Change of gluonic background in nuclear matter  could be probed by heavy quark system

8. Why Heavy Quark system can probe this gluonic change 1. Heavy quark propagation Perturbative treatment are possible because

9. 2. System with two heavy quarks Perturbative treatment are possible when

10. 3570 3500 3400 3090 3000 q2<0: QCD sum rules for charmonium (cc)

11. Heavy quark propagator is sensitive to onlygluon fields and therefore the mass of heavy quark system will change in nuclear medium

12. Approaches for charmonium mass shift in nuclear matter

13. Such experiment can be done at 1. GSI future accelerator facility ⇒ anti proton project (1-15 GeV) HESR

15. Anti proton project at GSI Anti proton Heavy nuclei Anti proton will be absorbed at surface and Charmonium will decay inside the heavy nuclei

16. Production rate:

17. Charmonium spectrum

18. Similar to discoveries in E&M Pieter Zeeman (1865-1943) Johannes Stark (1874-1957) Zeeman effect: Nobel prize 1902 Stark effect: Nobel prize 1919 Beginning of the Femtophysics era

19. Heavy exotics from Heavy Ion collision Physics with CBM

20. Attractions in quark-antiquark vs. diquark Phenomenological fit to hadron spectrum color spin interaction One gluon exchange Lattice calculation

21. Color spin interaction explains hadron spectrum u u d Nucleon Baryon Mass difference Meson Mass difference Works very well with 3CB=CM = constant

22. Strong quark-antiquark attraction Weak quark-antiquark attraction q u u u q c d d d u d Epentaquark-Emeson-Baryon= -50MeV When will a pentaquark form ? u q d d u s

23. c s s c Etetraquark-E2-meson= +38 MeV When will a tetraquark form ? a u d b Strong quark-antiquark attraction Weak quark-antiquark attraction u d a u b a b d

24. Success of statistical model P. Braun-Munzinger, J. Stachel (95 …)

25. Exotic particle production: elementary vs HIC Exotic particle production from elementary processes Exotic particle production from Heavy Ion collision N=c exp(-mQ/T) QGP u u u u c c d d d d

26. Possible Decay mode of charmed Pentaquark Q+ u u c d d L=1

27. Rough estimate of events at RHIC Qc u u c d d Central collision (0-10%) dNcc/dy = 2.2 (phenix)

28. Possible Decay mode of Tetra-quark u d c c

29. If STAR can do it, CBM can do much better STAR CBM 4 month Au+Au at 25 AGeV CBM

30. And also at LHC (W.Liu, C.M.Ko, SHL 07) udud c ud cc

31. Summary • From PANDA (anti proton beam), can look at the charmonium mass shift in nuclear medium  Beginning of Femto Physics Hint to confinement and QCD vacuum • From CBM (heavy Ion Physics), can look at heavy Exotics  New exotic hadron in QCD If found the first real exotic ever, will tell us about QCD and dense matter  color superconductivity

32. 4 month Au+Au at 25 AGeV CBM

34. Perturbative treatment are possible when

35. Example: from Volker Metag’s recent talk Shocking result !! New structure appearing?