1. Jung Keun Ahn @ PNU Exotic Hadron Spectroscopy @ J-PARC HaPhy 2005.10.8

2. Exotic Baryon Pentaquarks New Searches J-PARC Outlook Quantum # cannot be matched by qq’q”. For SU f (3), qqq generates 3 x 3 x 3 = 1 + 8s + 8a + 10 For meson-octet +baryon-octet, 8 x 8 = 1 + 8 + 8 + 10 + 10 + 27 

3. Exotic Baryons New Searches J-PARC Outlook

4. Exotic Baryons New Searches J-PARC Outlook  =20 MeV  =1 MeV K + d and K + n

5. Exotic Baryons New Searches J-PARC Outlook

6. Exotic Baryons New Searches J-PARC Outlook

7. Pentaquark  + Exotic Baryons New Searches J-PARC Outlook nK +

8. Null Results Exotic Baryons New Searches J-PARC Outlook

9. Null Results Need High Stat Exotic Baryons New Searches J-PARC Outlook HERA-B PHENIX

10. Disappeared? Exotic Baryons New Searches J-PARC Outlook

11. Very preliminary KEK-E522  ~2mb Exotic Baryons New Searches J-PARC Outlook KEK-PS K2 Beam Line 1.66 GeV/c K- 1.9 GeV/c  - ++

12. N(2400)   +K- Exotic Baryons New Searches J-PARC Outlook

13. Exotic Baryons New Searches J-PARC Outlook  p/n n/p  K + /K 0  MMd(γ,K － p) GeV/c 2 Quasi-free  and non- resonant KKp   Bump structure  d   +  (1520) @ LEPS

14. Exotic Baryons New Searches J-PARC Outlook Decay modes studied: Θ + →K 0 p Λ→pπ - K 0 → π + π - Θ + →K + n Λ→pπ - (n) (K + ) CLAS very preliminary E  = 0.8 – 1.55 GeV 1) ppπ + π - (  ) 2) ppπ - π + π - (p) 3) ppπ - K + (n) (Θ→nK + ) Possible final states: Search for γ 3 He→ΛΘ + p

15. Exotic Baryons New Searches J-PARC Outlook  (1530)  − − M=1.862± 0.002 GeV  <0.018 GeV CERN SPS hep-ex/0310014 00 Combined spectra  - - @ NA49 @ CERN

16. Negative Results Exotic Baryons New Searches J-PARC Outlook WA89   +A @ 340 GeV/c. Also not seen by CDF, BaBar, ZEUS, ALEPH and E690.

17. Exp Evidence for N* Exotic Baryons New Searches J-PARC Outlook GRAAL  n   n N(1680) N(1730)

18. New Exotic Baryons Pentaquarks New Searches J-PARC Outlook

19. Pentaquarks New Searches J-PARC Outlook Further exotics from STAR and CLAS Invariant Mass (GeV/c 2 ) S. Kabana, AGS&RHIC Users Meeting M. Bttaglieri, JLAB Users Meeting June 16, 2004

20. Search for  ++,  5,  5  in JLab Pentaquarks New Searches J-PARC Outlook simulation  Search for  * ++ partners in ep  e’K - X ++  Search for  5 in ep  eK + X o  Search for  - in  p   K + K +  -  - (1862) 

21. Excited States of the  + Pentaquarks New Searches J-PARC Outlook  Spin-flavor partners, T = 1, J P = 3/2 +, to the  + are predicted at slightly higher masses than the  +.  p  K + n) K 0 (  +  - ) E g < 2.2 GeV cos CM (K 0 ) < -0.35   very preliminary   Mass = 1523 +/- 5 MeV FWHM ~ 9 MeV Mass = 1573 +/- 5 MeV FWHM ~ 9 MeV  p  K +  +  - (n) cos CM K 0 <- 0.35 N (1523) ~ 160 N (1573) ~ 300 simulation JLab–G11 run

22. X(2000) and  (3170) Pentaquarks New Searches J-PARC Outlook pN  X(2000)N   0 K + N @ 70 GeV uudss pentaquark? SPHINX @ ITEP K-p   (3170)  -   KK  - @6.5, 8.25 GeV uusss pentaquark? CERN and Argone BC

23. K - p   -- (1860)K +  + @ 2.87 GeV/c BNL-HBC Pentaquarks New Searches J-PARC Outlook Complete kinematics, p K > 2.63 GeV/c K - p   - (1820)K +   -  +  - K +

24. Pentaquarks New Searches J-PARC Outlook Hyperon Resonances Low Energy Hyperon Beam S=-3 Hypernuclei Hyperon Resonances  6 GeV/c K beam for 2.5 GeV/c 2 Y* Production 3 x 3 x 3 = 10 + 8 + 8a + 1 =    (# of N* = 14)

25. J-PARC Pentaquark New Searches J-PARC Outlook

26. Beam Intensity Pentaquark New Searches J-PARC Outlook

27. Requirements Pentaquark New Searches J-PARC Outlook

28. High-p Beamline Pentaquark New Searches J-PARC Outlook

29. Spectrometer Pentaquark New Searches J-PARC Outlook SPring-8 0 1 2 3 4 5 6 7 8 9 10  p P (GeV)  e  k TOF CERENKOV TOF CERENKOV CALORIMETER

30. HARP @ CERN-PS Pentaquark New Searches J-PARC Outlook

31. Pentaquark New Searches J-PARC Outlook Korea Beamline @ J-PARC 1 1 2 2 3 3 4 4 2005 2006? K 1.1/0.8 Beamline or High-p Beamline 2-year Design + 3-year Construction $ 15M ( ½ Beamline + ½ Experiment) ½ Cost for the Construction  Korea 3~4 Exp Proposals + Beamline Proposal 2006.3