Abstract

We explicitly demonstrate how to correctly define the hadronic parton distributions [parton distribution functions (PDFs), transverse-momentum-dependent parton distribution functions, and generalized parton distributions] in the soft-wall anti-de Sitter/QCD approach, based on the use of a quadratic dilaton field, providing confinement and breaking of conformal and chiral symmetries. The power behavior of parton distributions at large values of the light-cone variable is consistent with quark counting rules and Drell-YanWest duality. All parton distributions are defined in terms of profile functions, which depend on the light-cone coordinate and are fixed from PDFs and electromagnetic form factors.