Polarization Transfer in Proton Compton Scattering at High Momentum Transfer
Journal Article
·
OSTI ID:833147
Compton scattering from the proton was investigated at s = 6.9 GeV{sup 2} and t = -4.0 TeV{sup 2} via polarization transfer from circularly polarized incident photons. The longitudinal and transverse components of the recoil proton polarization were measured. The results are in excellent agreement with a prediction based on a reaction mechanism in which the photon interacts with a single quark carrying the spin of the proton and in disagreement with a prediction of pQCD based on a two-gluon exchange mechanism.
- Research Organization:
- Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 833147
- Report Number(s):
- JLAB-PHY-04-280; DOE/ER/40150-2906; nucl-ex/0410001
- Country of Publication:
- United States
- Language:
- English
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