Diffractive deep inelastic scattering in an AdS/CFT inspired model: A phenomenological study

The analytical treatment of the nonperturbative QCD dynamics is one of the main open questions of the strong interactions. Currently, it is only possible to get some qualitative information about this regime considering other QCD-like theories, as, for example, the N = 4 super Yang-Mills theory, where one can perform calculations in the nonperturbative limit of large 't Hooft coupling using the anti-de Sitter space/conformal field theory (AdS/CFT). Recently, the high energy scattering amplitude was calculated in the AdS/CFT approach, applied to deep-inelastic scattering and confronted with the F-2 HERA data. In this work we extend the nonperturbative AdS/CFT inspired model for diffractive processes and compare its predictions with a perturbative approach based on the Balitsky-Kovchegov equation. We demonstrate that the AdS/CFT inspired model is not able to describe the current F-2(D(3)) HERA data and predicts a similar behavior to that from the Balitsky-Kovchegov equation in the range 10(-7) less than or similar to x(p) less than or similar to 10(-4). At smaller values of x(p) the diffractive structure function is predicted to be energy independent.