Exclusive photoproduction of J/psi and psi(2S) states in proton-proton collisions at the CERN LHC

TL;DR

This paper studies the exclusive production of J/psi and psi(2S) particles in proton-proton collisions at 7 TeV using the light-cone dipole model, comparing predictions with LHCb data.

Contribution

It applies the light-cone dipole formalism to predict charmonium production at LHC energies and analyzes theoretical uncertainties against experimental data.

Findings

Predictions agree with LHCb measurements within uncertainties

Quantified theoretical uncertainties in the model

Provided insights into the production mechanisms of charmonium states

Abstract

In this work we investigate the exclusive photoproduction of J/psi and the radially excited psi(2S) state off nucleon in proton-proton collisions. The theoretical framework considered in the analysis is the light-cone dipole formalism and predictions are done for proton-proton collisions at the CERN-LHC energy of 7 TeV. The theoretical uncertainties are investigated and comparison is done to the recent LHCb Collaboration data for the exclusive charmonium production.