Photoproduction of pentaquarks states at the LHC

TL;DR

This paper explores the production of pentaquark states via photon-proton interactions in high-energy hadronic collisions at RHIC and LHC, proposing models and predictions to aid experimental detection and understanding of these exotic states.

Contribution

It introduces two phenomenological models for J/Ψ photoproduction considering pentaquark resonances and provides predictions for rapidity distributions in various collision scenarios.

Findings

Predicted rapidity distributions for pentaquark production at RHIC and LHC.

Suggested experimental strategies for detecting pentaquarks via J/Ψ photoproduction.

Highlighted the potential of fixed-target collisions to confirm pentaquark states.

Abstract

In this paper we investigate the production of pentaquark states in the photon -- proton interactions present in hadronic collisions at the RHIC and LHC. We consider two phenomenological models for the $J/\Psi$ photoproduction that consider the presence of the $P_c(4312)$, $P_c(4440)$ and $P_c(4457)$ resonances in the $s$ -- channel of the $\gamma p \rightarrow J/\Psi p$ reaction. The rapidity distribution is estimated for $pA$ collisions at the RHIC and LHC. Predictions for $pPb$, $Pb \, Ar$ and $Pb \,He$ fixed -- target collisions at the LHC are also presented. We demonstrate that the experimental analysis of the $J/\Psi$ photoproduction in fixed -- target collisions can provide complementary and independent checks on these states, and help to understand their underlying nature.