Content area
Abstract
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.
Details
Title
Gauge invariance of DVCS off an arbitrary spin hadron: the deuteron target case
Author
Anikin, I V 1 ; Pasechnik, R S 2 ; Pire, B 3 ; Teryaev, O V 4
1 Institute for Theoretical Physics, University of Regensburg, Regensburg, Germany; Bogoliubov Laboratory of Theoretical Physics, JINR, Dubna, Russia
2 Department of Astronomy and Theoretical Physics, Lund University, Lund, Sweden
3 CPHT, École Polytechnique, CNRS, Palaiseau, France
4 Bogoliubov Laboratory of Theoretical Physics, JINR, Dubna, Russia
1 Institute for Theoretical Physics, University of Regensburg, Regensburg, Germany; Bogoliubov Laboratory of Theoretical Physics, JINR, Dubna, Russia
2 Department of Astronomy and Theoretical Physics, Lund University, Lund, Sweden
3 CPHT, École Polytechnique, CNRS, Palaiseau, France
4 Bogoliubov Laboratory of Theoretical Physics, JINR, Dubna, Russia
Pages
1-9
Publication year
2012
Publication date
Jul 2012
ISSN
14346044
e-ISSN
14346052
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2294189647
Copyright
The European Physical Journal C is a copyright of Springer, (2012). All Rights Reserved.