Generalized parton distributions of the nucleon in constituent quark models

Details Generalized parton distributions of the nucleon in constituent quark models Generalized parton distributions of the nucleon in constituent quark models

2005-02-15

arxiv.org/abs/hep-ph/0502140v1

Nucl.Phys. A755 (2005) 545-548

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 1 figure, presented at the Baryon-04 Conference, Palaiseau (France), October 25-29, 2004. Nuclear Physics A, to be pu

Scientific paper

10.1016/j.nuclphysa.2005.03.099

Generalized parton distributions (GPDs) are studied at the hadronic (nonperturbative) scale within different assumptions based on a relativistic constituent quark model. In particular, by means of a meson-cloud model we investigate the role of nonperturbative antiquark degrees of freedom and the valence quark contribution. A QCD evolution of the obtained GPDs is used to add perturbative effects and to investigate the GPDs' sensitivity to the nonperturbative ingredients of the calculation at larger (experimental) scale.

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