Quarkonium+γ production in coherent hadron-hadron interactions at LHC energies

摘要

In this paper we study the H + γ (H = J/Ψ and Υ) production in coherent hadron-hadron interactions at LHC energies. Considering the ultrarelativistic protons as a source of photons, we estimate the γ + p→H + γ + X cross section using the non-relativistic QCD (NRQCD) factorization formalism and considering different sets of values for the matrix elements. Our results for the total p + p → p + H + γ + X cross sections and rapidity distributions at √s = 7 and 14 TeV demonstrate that the experimental analysis of the J/Ψ +γ production at LHC is feasible.