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Generalized parton distributions of the pion in a Bethe Salpeter approach

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Generalized parton distributions of the pion in a Bethe Salpeter approach

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dc.contributor.author Theussl, L.
dc.contributor.author Noguera Puchol, Santiago
dc.contributor.author Vento Torres, Vicente
dc.date.accessioned 2014-03-21T11:08:41Z
dc.date.available 2014-03-21T11:08:41Z
dc.date.issued 2004
dc.identifier.citation Theussl, L. Noguera Puchol, Santiago Vento Torres, Vicente 2004 Generalized parton distributions of the pion in a Bethe Salpeter approach European Physical Journal A 20 3 483 498
dc.identifier.uri http://hdl.handle.net/10550/33643
dc.description.abstract We calculate generalized parton distribution functions in a field theoretic formalism using a covariant Bethe-Salpeter approach for the determination of the bound-state wave function. We describe the procedure in an exact calculation in scalar Electrodynamics proving that the relevant corrections outside our scheme vanish. We extend the formalism to the Nambu-Jona-Lasinio model, a realistic theory of the pion. We go in both cases beyond all previous calculations and discover that all important features required by general physical considerations, like symmetry properties, sum rules and the polynomiality condition, are explicitly verified. We perform a numerical study of their behavior in the weak- and strong-coupling limits.
dc.relation.ispartof European Physical Journal A, 2004, vol. 20, num. 3, p. 483-498
dc.subject Física nuclear
dc.title Generalized parton distributions of the pion in a Bethe Salpeter approach
dc.type journal article es_ES
dc.date.updated 2014-03-21T11:08:41Z
dc.identifier.doi 10.1140/epja/i2003-10174-3
dc.identifier.idgrec 018693
dc.rights.accessRights open access es_ES
dc.identifier.url 10.1140/epja/i2003-10174-3

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