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roman pasechnik

Roman Pasechnik

Senior lecturer

roman pasechnik

Gauge invariance of DVCS off an arbitrary spin hadron: the deuteron target case

Author

  • I. V. Anikin
  • Roman Pasechnik
  • B. Pire
  • O. V. Teryaev

Summary, in English

We study the deeply virtual Compton scattering off a spin-one particle, as the case for the coherent scattering off a deuteron target. We extend our approach, formulated initially for a spinless case, and discuss the role of twist three contributions for restoring the gauge invariance of the amplitude. Using twist three contributions and relations, which emanate from the QCD equations of motion, we derive the gauge invariant amplitude for the deeply virtual Compton scattering (DVCS) off hadrons with spin 1. Using the derived gauge invariant amplitude, the single spin asymmetry is discussed.

Department/s

  • Theoretical Particle Physics - Has been reorganised

Publishing year

2012

Language

English

Publication/Series

European Physical Journal C. Particles and Fields

Volume

72

Issue

7

Document type

Journal article

Publisher

Springer

Topic

  • Subatomic Physics

Status

Published

ISBN/ISSN/Other

  • ISSN: 1434-6044