Gauge invariance of DVCS off an arbitrary spin hadron: the deuteron target case
(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.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3069020
- author
- Anikin, I. V. ; Pasechnik, Roman LU ; Pire, B. and Teryaev, O. V.
- organization
- publishing date
- 2012
- 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
- 2016-04-01 13:35:34
- date last changed
- 2024-03-27 06:31:10
@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}}, doi = {{10.1140/epjc/s10052-012-2055-5}}, volume = {{72}}, year = {{2012}}, }