| DATE: |
2007-06-12 16:00 - 17:00 |
| PLACE: |
Room 244, Building No.4 |
| TITLE: |
Novel hard QCD exclusive phenomena at J-PARC energies |
| CONTACT: |
KUMANO Shunzo (shunzo.kumano kek.jp) |
| SPEAKER: |
Mark Strikman (Penn State University) |
| LANGUAGE: |
English |
| ABSTRACT: |
Aim of the talk is to explore the potential of J-PARC for discovery
of novel hard exclusive QCD phenomena. We consider large t 2->2
processes dominated by exchange of three quarks and quark-antiquark
between colliding hadrons. Such processes in addition to
investigating QCD in a new kinematics provide a new way to look for
new baryonic and mesonic resonances. In the region of large c.m.
angles these studies may reveal the reasons for success of the
scaling laws. When imbedded in the nuclei these processes will allow
to explore the role of the small size configurations in mesons
and baryons and related color transparency phenomenon, as well as
investigate the space-time evolution of the color singlet small wave
packets. At the same time these processes can be used for study of
the high density configurations (short-range correlations) in nuclei.
Studies in the similar kinematics of the processes where three
hadrons are produced in the final state with two of the hadrons
having large transverse momenta will allow to investigate diagonal
and off diagonal generalized parton distributions of the nucleon and
mesons and for the first time investigate color clustering properties
of the hadrons. Advantages of using polarized targets/beams will be
also discussed.
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