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dc.contributor.authorChouika, N.
dc.contributor.authorMezrag, C.
dc.contributor.authorMoutarde, H.
dc.contributor.authorRodríguez-Quintero, J.
dc.identifier.citationChouika, N.; Mezrag, C.; Moutarde, H. Rodríguez-Quintero, J. A Nakanishi-based model illustrating the covariant extension of the pion GPD overlap representation and its ambiguities. Physics Letters B 780 (2018) 287–293 []es_ES
dc.description.abstractA systematic approach for the model building of Generalized Parton Distributions (GPDs), based on their overlap representation within the DGLAP kinematic region and a further covariant extension to the ERBL one, is applied to the valence-quark pion’s case, using light-front wave functions inspired by the Nakanishi representation of the pion Bethe–Salpeter amplitudes (BSA). This simple but fruitful pion GPD model illustrates the general model building technique and, in addition, allows for the ambiguities related to the covariant extension, grounded on the Double Distribution (DD) representation, to be constrained by requiring a soft-pion theorem to be properly observed.es_ES
dc.description.sponsorshipThis work is partly supported by the Commissariat à l’Energie Atomique et aux Energies Alternatives, the GDR QCD “Chromodynamique Quantique”, the ANR-12-MONU-0008-01 “PARTONS” and the Span-ish ministry Research Project FPA2014-53631-C2-2-P.es_ES
dc.publisherElsevier B. V.es_ES
dc.rightsAtribución 3.0 España*
dc.subjectGeneralized parton distributionses_ES
dc.subjectLight-front wave-functionses_ES
dc.subjectRadon transformes_ES
dc.subjectDouble distributionses_ES
dc.titleA Nakanishi-based model illustrating the covariant extension of the pion GPD overlap representation and its ambiguitieses_ES

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Atribución 3.0 España
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