Pomeron and Reggeon contributions to elastic proton-proton and proton-antiproton scattering in holographic QCD

TL;DR

This paper models elastic proton-proton and proton-antiproton scattering using holographic QCD, analyzing Pomeron and Reggeon exchanges to match experimental data across various energies.

Contribution

It introduces a holographic QCD framework with Reggeized glueball and meson propagators to describe scattering contributions, fitting parameters to experimental results.

Findings

Total and differential cross sections agree with experimental data

Energy dependence of Pomeron and Reggeon contributions analyzed

Model accurately describes scattering over wide kinematic range

Abstract

The total and differential cross sections of elastic proton-proton and proton-antiproton scattering are studied in a holographic QCD model, considering the Pomeron and Reggeon exchanges in the Regge regime. In our model setup, the Pomeron and Reggeon exchanges are described by the Reggeized spin-2 glueball and vector meson propagators, respectively. How those contributions change with the energy is explicitly shown, focusing on the contribution ratios. The adjustable parameters included in the model are determined with the experimental data, and it is presented that the resulting total and differential cross sections are consistent with the data in a wide kinematic region.