Elastic proton-neutron and antiproton-neutron scattering in holographic QCD

TL;DR

This paper models elastic proton-neutron and antiproton-neutron scattering in holographic QCD, successfully describing total cross sections and predicting differential cross sections using Regge theory with minimal parameters.

Contribution

It introduces a holographic QCD approach incorporating Pomeron and Reggeon exchanges to accurately model scattering cross sections with limited experimental data.

Findings

Total cross sections are well described by the model.

Predicted differential cross sections align with limited experimental data.

A single adjustable parameter suffices for both total and differential predictions.

Abstract

The total and differential cross sections of the elastic proton-neutron and antiproton-neutron scattering are studied in a holographic QCD model, focusing on the Regge regime. Taking into account the Pomeron and Reggeon exchange, which are described by the Reggeized spin-2 glueball and vector meson propagator respectively, those cross sections are obtained. It is presented that the currently available experimental data of the total cross sections can be well described within the model. Once a single adjustable parameter is determined with the total cross section data, the differential cross sections can be calculated without any additional parameters. Although the available differential cross section data are limited, it is found that our predictions are consistent with those.