Single-spin asymmetry in deeply virtual Compton scattering: Fragmentation region of polarized lepton

Journal Article

For the kinematical region when a hard photon is emitted predominantly close to the direction of motion of a longitudinally polarized initial electron and relatively small momentum is transferred to a proton we calculate the azimuthal asymmetry of photon emission. It arises from the interference of the Bethe-Heitler amplitude and amplitudes described by a heavy photon impact factor. Azimuthal asymmetry does not decrease in the limit of infinite c.m.s. energy. The lowest order expression for the impact factor of a heavy photon is presented. ©2001 The American Physical Society.

Duke Authors

Cited Authors

  • Akushevich, I; Kuraev, EA; Shaikhatdenov, BG

Published Date

  • November 1, 2001

Published In

Volume / Issue

  • 64 / 9

International Standard Serial Number (ISSN)

  • 0556-2821

Citation Source

  • Scopus