Inclusive hadron and photon production at LHC in dipole momentum space

TL;DR

This paper uses a momentum space dipole model based on the Balitsky-Kovchegov equation to analyze saturation effects in hadron and photon production at LHC energies, providing data description and predictions for nuclear modification ratios.

Contribution

It introduces a momentum space model for the dipole scattering amplitude rooted in the BK equation, applied to LHC collision data and forward region predictions.

Findings

Describes proton-proton and proton-lead collision data at LHC energies.

Predicts nuclear modification ratios for hadron and photon production.

Highlights the importance of saturation effects at high parton densities.

Abstract

Using a momentum space model for the dipole scattering amplitude we present an analysis of the saturation effects at LHC energies, describing the data on proton-proton and proton-lead collisions. The model is based on the asymptotic solutions of the Balitsky-Kovchegov equation, being ideal in the saturation domain where the target wave function has a high occupation number. We also make predictions for the nuclear modification ratios on charged hadron and prompt photon production in the forward region, where the high parton density effects are important.