Hard Photo-disintegration of proton pairs in 3He
Conference
·
OSTI ID:955919
Hard deuteron photodisintegration has been investigated for 20 years, as its cross section follows the constituent counting rule and it provides insight into the interplay between hadronic and quark-gluon degrees of freedom in high-momentum transfer exclusive reactions. We have now measured for the first time hard pp-pair disintegration in the reaction gamma 3He-->pp+n, using kinematics corresponding to a spectator neutron. Cross sections were measured for 90 deg. c.m. at 8 beam energies, from 0.8 to 4.7 GeV. Preliminary results will be presented and compared to the hard deuteron photodisintegration data.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-060R23177
- OSTI ID:
- 955919
- Report Number(s):
- JLAB-PHY-08-867; DOE/OR/23177-0521; TRN: US1004815
- Resource Relation:
- Conference: Invited Talk compiled for Sixth International Conference on Perspectives in Hadronic Physics
- Country of Publication:
- United States
- Language:
- English
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