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Generalized parton distributions: confining potential effects within AdS/QCD

Abstract : Generalized Parton Distributions are investigated within a holographic approach where the string modes in the fifth dimension describe the nucleon in a bottom-up or AdS/QCD framework. The aim is to bring the AdS/QCD results in the realm of phenomenology in order to extract consequences and previsions. Two main aspects are studied: i) the role of the confining potential needed for breaking conformal invariance and introducing confinement (both: classic Soft-Wall and recent Infra-Red potentials are investigated); ii) the extension of the predicted GPDs to the entire range of off-forward kinematics by means of Double-Distributions. Higher Fock states are included describing the nucleon as a superposition of three valence quarks and quark-antiquark pairs and gluons.
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Submitted on : Wednesday, May 3, 2017 - 10:31:35 AM
Last modification on : Friday, January 7, 2022 - 3:51:42 AM
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Marco Traini. Generalized parton distributions: confining potential effects within AdS/QCD. European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2017, 77, pp.246. ⟨10.1007/s100529800978⟩. ⟨cea-01517380⟩



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