Elastic proton-proton and pion-proton scattering in holographic QCD

TL;DR

This paper models elastic proton-proton and pion-proton scattering using holographic QCD, incorporating Pomeron and Reggeon exchanges to match experimental cross sections across various energies.

Contribution

It introduces a holographic QCD framework with Reggeized propagators for Pomeron and Reggeon exchanges, providing a unified description of scattering data.

Findings

Cross sections match experimental data across wide kinematic ranges.

Inclusion of Coulomb interaction improves differential cross section accuracy.

Model parameters are effectively fitted to experimental results.

Abstract

The elastic proton-proton and pion-proton scattering processes are investigated in the framework of holographic QCD. Considering the Pomeron and Reggeon exchange in the Regge regime, the total and differential cross sections are calculated. In the model setup, the Pomeron and Reggeon exchange are described by the Reggeized spin-2 glueball and vector meson propagator, respectively. For the differential cross sections, contributions of the Coulomb interaction are also taken into account. Adjustable parameters involved in the model are determined with the experimental data, and it is presented that the resulting cross sections are consistent with the data in a wide kinematic region.