GPDs, the structure of the proton and wide-angle Compton scattering

Details GPDs, the structure of the proton and wide-angle Compton scattering GPDs, the structure of the proton and wide-angle Compton scattering

2006-12-04

arxiv.org/abs/hep-ph/0612026v1

AIP Conf.Proc.904:76-86,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 16 figures, using aipproc.cls, aipxfm.sty, aip-8s.clo talk presented at the workshop on the Shape of Hadrons, Athens

Scientific paper

10.1063/1.2734293

Results from a recent analysis of the zero-skewness generalized parton distributions (GPDs) for valence quarks are reviewed. The analysis bases on a physically motivated parameterization of the GPDs with a few free parameters adjusted to the nucleon form factor data. Results for the GPDs are presented and a number of applications such as moments, Ji's sum rule or their impact parameter representation are discussed. The 1/x moments, in particular, form the soft physics input to Compton scattering off protons within the handbag approach. The Compton cross section evaluated from this information is found to be in good agreement with experiment.

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