Abstract

In this contribution we investigate the influence of nuclear effects in hadroproduction of quarkonium associated with a photon. At high energies, such processes provide a probe of the QCD dynamics as it is dependent on the nuclear gluon distribution, and could be usefull in constraining the behavior of the nuclear gluon distribution in proton‐nucleus and nucleus‐nucleus collisions. Here we study the influence of the shadowing effect, in the production of J/Ψ+γ at the LHC and estimate the pT dependence of the nuclear modification factors. The theoretical framework considered for J/Ψ+γ production is the non‐relativistic QCD (NRQCD) factorization formalism.

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