Journal
EUROPEAN PHYSICAL JOURNAL C
Volume 77, Issue 4, Pages -Publisher
SPRINGER
DOI: 10.1140/epjc/s10052-017-4775-z
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Funding
- Sezione INFN
- Department of Physics and Geology
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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 super-position of three valence quarks and quark-antiquark pairs and gluons.
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