Generalized parton distributions of the nucleon in constituent quark models
arXiv:hep-ph/0502140 · doi:10.1016/j.nuclphysa.2005.03.099
Abstract
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.
arXiv comment4 pages, 1 figure, presented at the Baryon-04 Conference, Palaiseau (France), October 25-29, 2004. Nuclear Physics A, to be published
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