QCD evolution and skewedness effects in color dipole description of DVCS

Details QCD evolution and skewedness effects in color dipole description of DVCS QCD evolution and skewedness effects in color dipole description of DVCS

2004-02-02

arxiv.org/abs/hep-ph/0402018v2

Eur.Phys.J. C34 (2004) 429-433

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX, 6 pages, 5 Figs. Vers 2: Minor modifications. Accepted by EPJC

Scientific paper

10.1140/epjc/s2004-01733-5

We show the role played by QCD evolution and skewedness effects in the DVCS cross section at large $Q^2$ within the color dipole description of the process at photon level. The dipole cross section is given by the saturation model, which can be improved by DGLAP evolution at high photon virtualities. We investigate both possibilities as well as the off-forward effect through a simple phenomenological parametrisation. The results are compared to the recent ZEUS DVCS data.

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