Holographic description of total hadronic cross sections at high energies

TL;DR

This paper uses holographic QCD to model high-energy hadron-hadron total cross sections, successfully matching recent LHC data and predicting other interactions based on a unified framework.

Contribution

It introduces a holographic QCD model employing the Pomeron exchange kernel and bottom-up AdS/QCD form factors to describe high-energy hadronic cross sections.

Findings

Nucleon-nucleon cross section matches LHC data.

Model predicts pion-nucleon and pion-pion cross sections.

Parameters fixed by nucleon data, enabling broader predictions.

Abstract

We investigate the hadron-hadron total cross sections at high energies in the framework of holographic QCD. In our model setup, the involved strong interaction is described by the Brower-Polchinski-Strassler-Tan Pomeron exchange kernel, and the two form factors are obtained from the bottom-up AdS/QCD models. We show that the resulting nucleon-nucleon total cross section is consistent with the experimental data recently measured by the TOTEM collaboration at the LHC. As examples to see the general versatility of the model, we also present our analysis on the pion-nucleon and pion-pion cases, which can be predicted because all the adjustable parameters are fixed by the nucleon-nucleon data.