Proton Structure Functions from an AdS/QCD model with a deformed background

Abstract

In this work we study unpolarized spin $1/2$ baryonic deep inelastic scattering (DIS) in the regime of large Bjorken parameter $x$. We calculate the corresponding structure functions $F_{1,2}(x,q^2)$. Our approach is based on an AdS/QCD model with a deformed background, where we consider an exponential factor in the AdS${}_5$ metric. Such a deformation implies the introduction of an anomalous dimension in the model. Our results for the structure functions are consistent with those found in the literature from experimental data.

Comments: V2: 25 pages, 6 figures, 1 table. Text improved. Typos corrected. New references added. Results unchanged. This version matches the published one in PRD