Overview on All Reactions Linked to GPDs

Abstract

A short overview is given on how generalized parton distributions (GPDs) enter in a variety of hard exclusive processes such as deeply virtual Compton scattering (DVCS) and hard meson electroproduction reactions on the nucleon. We firstly discuss the links between GPDs and elastic nucleon form factors which represent powerful constraints on parametrizations of GPDs. Subsequently, we show some key observables which are sensitive to the various hadron structure aspects of the GPDs, and which are at present under experimental investigation at different facilities (HERMES, H1/ZEUS, JLab and Compass), or will be addressed by experiments in the near future.

9 pages, to appear in the Proceedings of the European Workshop on the QCD structure of the Nucleon (QCD-N'02), Ferrara, April 3-6, 2002

Cited by in corpus (4)

• The generalized parton distribution function (E^u+E^d)(x,xi,t) of the nucleon in the chiral quark soliton model
• Helicity-dependent generalized parton distributions in constituent quark models
• The dual parameterization of the proton generalized parton distribution functions H and E and description of the DVCS cross sections and asymmetries
• Polynomiality of helicity off-forward distribution functions in the chiral quark-soliton model