Some comments on the handbag approach to wide-angle exclusive scattering

Details Some comments on the handbag approach to wide-angle exclusive scattering Some comments on the handbag approach to wide-angle exclusive scattering

2004-10-11

arxiv.org/abs/hep-ph/0410147v1

Annalen Phys. 13 (2004) 690-698

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 7 figures, contribution to Festschrift for Klaus Goeke's 60th birthday, to be published in Annalen der Physik

Scientific paper

10.1002/andp.200410111

The handbag mechanism for wide-angle exclusive scattering reactions is discussed and compared to other theoretical approaches. The role of power laws in observables is critically examined. Applications of the handbag mechanism to Compton scattering and meson photoproduction are presented. The soft physics input to these processes are specific form factors which represent 1/x moments of generalized parton distributions at zero skewness. A recent analysis of the nucleon form factors provide these GPDs and, hence, the new form factors.

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