Single--Spin Asymmetries in the Bethe--Heitler Process e{sup -} + p {yields} e{sup -} + {gamma} + p from QED Radiative Corrections
Journal Article
·
OSTI ID:841875
We derived analytic formulae for the polarization single--spin asymmetries (SSA) in the Bethe--Heitler process e{sup -} + p {yields} e{sup -} + {gamma} + p. The asymmetries arise due to one-loop QED radiative corrections to the leptonic part of the interaction and present a systematic correction for the studies of virtual Compton Scattering on a proton through interference with the Bethe-Heitler amplitude. Considered are SSA with either longitudinally polarized electron beam or a polarized proton target. The computed effect appears to be small, not exceeding 0.1 percent for kinematics of current virtual Compton scattering experiments.
- 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:
- 841875
- Report Number(s):
- JLAB-PHY-05-379; DOE/ER/40150-3526; hep-ph/0507059
- Country of Publication:
- United States
- Language:
- English
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