Photoproduction of heavy vector mesons in peripheral $PbPb$ collisions at the Large Hadron Collider

TL;DR

This paper analyzes the photoproduction of heavy vector mesons in peripheral lead-lead collisions at the LHC, comparing various models with ALICE data to improve understanding of photon-induced processes.

Contribution

It provides a comprehensive comparison of different theoretical models for meson photoproduction in peripheral collisions and assesses their agreement with experimental data.

Findings

Models show varying agreement with ALICE data.

Detailed modeling of photon flux and scattering amplitudes is crucial.

Results suggest further analysis can improve photon-induced process descriptions.

Abstract

A comprehensive analysis of the photoproduction of $J/\Psi$ and $\Upsilon$ mesons in peripheral $PbPb$ collisions at the center - of - mass energies of the Large Hadron Collider (LHC) is performed, considering distinct assumptions for the modeling of the nuclear photon flux, photon - nucleus cross - section, overlap function and dipole - proton scattering amplitude. The comparison of these predictions with the ALICE data is also performed. Our results indicate that a detailed analysis of the production of both mesons will be very useful to improve the description of photon - induced processes in peripheral collisions.