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Generalized parton distributions in constituent quark models

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Generalized parton distributions in constituent quark models

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dc.contributor.author Scopetta, Sergio
dc.contributor.author Vento Torres, Vicente
dc.date.accessioned 2015-05-13T08:26:16Z
dc.date.available 2015-05-13T08:26:16Z
dc.date.issued 2003
dc.identifier.citation Scopetta, Sergio Vento Torres, Vicente 2003 Generalized parton distributions in constituent quark models European Physical Journal A 16 4 527 535
dc.identifier.uri http://hdl.handle.net/10550/43757
dc.description.abstract An approach is proposed to calculate Generalized Parton Distributions (GPDs) in a Constituent Quark Model (CQM) scenario. These off-diagonal distributions are obtained from momentum space wave functions to be evaluated in a given non relativistic or relativized CQM. The general relations linking the twist-two GPDs to the form factors and to the leading twist quark densities are consistently recovered from our expressions. Results for the leading twist, unpolarized GPD, H, in a simple harmonic oscillator model, as well as in the Isgur and Karl model, are shown to have the general behavior found in previous estimates. NLO evolution of the obtained distributions, from the low momentum scale of the model up to the experimental one, is also shown. Further natural applications of the proposed formalism are addressed.
dc.language.iso eng
dc.relation.ispartof European Physical Journal A, 2003, vol. 16, num. 4, p. 527-535
dc.subject Física
dc.title Generalized parton distributions in constituent quark models
dc.type journal article es_ES
dc.date.updated 2015-05-13T08:26:16Z
dc.identifier.doi 10.1140/epja/i2002-10120-y
dc.identifier.idgrec 007734
dc.rights.accessRights open access es_ES

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