Single--Spin Asymmetries in the Bethe--Heitler Process e{sup -} + p {yields} e{sup -} + {gamma} + p from QED Radiative Corrections

Journal Article · Wed Jun 01 00:00:00 EDT 2005

OSTI ID:841875

Afanasev, Andrei; Konchatnij, M I; Merenkov, N P

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 (TJNAF), Newport News, VA (United States)
• 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; TRN: US0503014
• Resource Relation: Other Information: No journal information given for this preprint; PBD: 1 Jun 2005
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COMPTON EFFECT
ELECTRON BEAMS
POLARIZATION
PROTONS
RADIATIVE CORRECTIONS