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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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