Exclusive vector meson photoproduction in fixed - target collisions at the LHC

TL;DR

This paper predicts the distributions and cross sections of exclusive vector meson photoproduction in fixed-target collisions at the LHC, demonstrating the feasibility of experimental analysis in this new kinematic regime.

Contribution

First estimation of rapidity and transverse momentum distributions for vector meson photoproduction in fixed-target LHC collisions using STARlight Monte Carlo.

Findings

Predicted distributions for $ ho$, $ ext{omega}$, and $J/ ext{psi}$ mesons.

Estimated total cross sections for various fixed-target collision systems.

Demonstrated experimental feasibility at LHCb for probing QCD dynamics.

Abstract

The exclusive $\rho$, $\omega$ and $J/\Psi$ photoproduction in fixed - target collisions at the LHC is investigated. We estimate, for the first time, the rapidity and transverse momentum distributions of the vector meson photoproduction in $p He$, $p Ar$, $Pb He$ and $Pb Ar$ fixed - target collisions at the LHC using the STARlight Monte Carlo and present our results for the total cross sections. Predictions for the kinematical range probed by the LHCb detector are also presented. Our results indicate that the experimental analysis of this process in fixed - target collisions at the LHC is feasible. Such future analysis will probe the QCD dynamics in a kinematical range complementary to that studied in the collider mode.