Diffractive Photoproduction of Psi(2S) in Photon-Pomeron Reactions in PbPb Collisions at the CERN LHC

TL;DR

This paper models the exclusive photoproduction of the $4A2S$ meson in lead-lead collisions at the CERN LHC using the light-cone dipole formalism, comparing predictions with recent experimental data.

Contribution

It provides theoretical predictions for $4A2S$ photoproduction in PbPb collisions at LHC energies, extending previous work on $4A2S$ and $4A2S$ states.

Findings

Predicted cross sections for coherent and incoherent $4A2S$ production.

Comparison shows consistency with ALICE data for $4A2S$ photoproduction.

Highlights the role of nuclear effects in meson production.

Abstract

This work investigates the exclusive photoproduction of $\psi(2S)$ meson off nuclei evaluating the coherent and the incoherent contributions. The theoretical framework used in the present analysis is the light-cone dipole formalism and predictions are done for PbPb collisions at the CERN-LHC energy of 2.76 TeV. A comparison is done to the recent ALICE Collaboration data for the $\psi(1S)$ state photoproduction.