Roman Pasechnik
Senior lecturer
Gauge invariance of DVCS off an arbitrary spin hadron: the deuteron target case
Author
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