A next-to-leading order analysis of deeply virtual Compton scattering
High Energy Physics - Phenomenology
2009-11-07 v3
Abstract
We present a complete, next-to-leading-order (NLO), leading-twist QCD analysis of deeply virtual Compton scattering (DVCS) observables, in the scheme, and in the kinematic ranges of the H1, ZEUS and HERMES experiments. We use a modified form of Radyushkin's ansatz for the input model for the generalized parton distributions. We present results for leading order (LO) and NLO for representative observables and find that they compare favourably to the available data.
Keywords
Cite
@article{arxiv.hep-ph/0106124,
title = {A next-to-leading order analysis of deeply virtual Compton scattering},
author = {A. Freund and M. F. McDermott},
journal= {arXiv preprint arXiv:hep-ph/0106124},
year = {2009}
}
Comments
5 pages, 2 figures, revtex, published version, we modify Radyushkin's ansatz for the GPDs to correct for finite hadronic mass effects, and, using the latest MRST PDFs, now agree with the H1 data (modified figs). Typo in Eq.(3) corrected