Generalized Parton Distributions and Constituent Quark Models
Journal Article
·
· AIP Conference Proceedings
- Dipartimento di Fisica, Universita degli Studi di Trento, Povo, Trento (Italy)
- Dipartimento di Fisica Nucleare e Teorica, Universita degli Studi di Pavia, Pavia (Italy)
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.
- OSTI ID:
- 20630617
- Journal Information:
- AIP Conference Proceedings, Vol. 747, Issue 1; Conference: HiX2004: 2. international workshop on the structure of the nucleon at large Bjorken x, Marseille (France), 26-28 Jul 2004; Other Information: DOI: 10.1063/1.1871660; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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