Differential and total cross sections of high energy proton-proton scattering in holographic QCD

Abstract

The analysis on the high energy proton-proton scattering is presented, focusing on the Regge regime and considering the Pomeron exchange to describe the involved nonperturbative dynamics in the framework of holographic QCD. We combine the Reggeized spin-2 particle propagator and the proton gravitational form factor, which is obtained from the bottom-up AdS/QCD model, and calculate the differential and total cross sections. We explicitly demonstrate the comparison between our calculations and the currently available experimental data including the recent ones measured at $\sqrt{s}=13$ TeV by the TOTEM collaboration at the LHC. It is shown that our results are consistent with the data, which implies that the present framework works in the considered TeV scale.

Comments: 6 pages, 2 figures, prepared for the proceedings of the XXVII International Workshop on Deep Inelastic Scattering and Related Subjects (DIS2019), 8 - 12 April 2019, Torino, Italy