1. Quark Hadron Transition
Misak Sargsian
Florida International University
PN12, JLAB 2-Nov-2004

2. Large intermediate/final hadronic masses

3. fixed s large t: -t > 1 GeV2

4. Large intermediate/final hadronic masses
- Large CM angle disintegration of nuclei: Mx
- Seminclusive Nuclear DIS Mx
- Resonance Production in Backward Direction Mx

5. Fixed masses but large momentum transfers
fixed s large t: -t > 1 GeV2

6. - Large CM angle disintegration of nuclei:Mx

10. Hard Rescattering Mx Mx

18. Brodsky,Carlson,Lipkin Phys.Rev.D 1979
NN NN
NN NN

20. Frankfurt, Miller, M.S. Sargsian
PRL 2000

22. Schulte, et al. Phys. Rev.C 2002

23. Mirazita, et al, Phys. Rev. C 2004

25. M.S. Phys. Lett.B 2004

27. Hard Disintegration of pp from 3He
Brodsky, Frankfurt, Gilman,Hiller, Miller,Piasetzky,M.S. Strikman
Phys.Lett. B 2004

33. - Seminclusive Nuclear DIS
Final State Interaction of the Spectator Nucleons is
Very Sensitive to the High x Structure of Struck Nucleon
Feynman Mechanism
Minimal Fock Component
Approximation

35. - First term recovers PWIA contribution
- Pole term cancels due to orthogonality
- Non-Pole (off-shell) term accounts for FSI

37. Solid line - Pt=0
Dashed line - Pt=500 MeV/c

38. Q2=1.8 GeV2
x=0.45
WN=1.7 GeV2
pt = 300 MeV/c

39. - Separation of Forward/Backward Production
- Resonance Production in Backward Direction
Survey Experiments
- Separation of Forward/Backward Production

40. Deuteron (t=0,s=1) two nucleons two-separately color neutral objects
Chiral Restoration and Hidden Color
In the world where chiral symmetry is broken
Deuteron (t=0,s=1) two nucleons two-separately color neutral objects
In the world where chiral symmetry is unbroken
Brodsky, Ji, 1985
Signature of Chiral Simmetry Restoration
with an increase of internal momenum in the deuteron

41. with an increase of internal momenum in the deuteron

42. - Large CM angle disintegration of nuclei:
Some Outlook
With 12 GeV it is possible to undertake consistent program on Nuclear QCD Studies
- Large CM angle disintegration of nuclei: Mx
Structure of NN scattering
- Seminclusive Nuclear DIS Mx
Structure of DIS scattering
- Resonance Production in Backward Direction
Transition to QCD deg of freedom
at small distances in nuclei Mx