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

Anikin, I. V.; Pasechnik, Roman LU ; Pire, B. and Teryaev, O. V. (2012) In European Physical Journal C. Particles and Fields 72(7).
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.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
European Physical Journal C. Particles and Fields
volume
72
issue
7
publisher
Springer
external identifiers
  • wos:000307269400003
  • scopus:84864028980
ISSN
1434-6044
DOI
10.1140/epjc/s10052-012-2055-5
language
English
LU publication?
yes
id
83225c9f-af0a-4a7f-a628-690d0da266c9 (old id 3069020)
date added to LUP
2012-09-26 15:01:33
date last changed
2017-01-01 05:45:21
@article{83225c9f-af0a-4a7f-a628-690d0da266c9,
  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.},
  author       = {Anikin, I. V. and Pasechnik, Roman and Pire, B. and Teryaev, O. V.},
  issn         = {1434-6044},
  language     = {eng},
  number       = {7},
  publisher    = {Springer},
  series       = {European Physical Journal C. Particles and Fields},
  title        = {Gauge invariance of DVCS off an arbitrary spin hadron: the deuteron target case},
  url          = {http://dx.doi.org/10.1140/epjc/s10052-012-2055-5},
  volume       = {72},
  year         = {2012},
}