Centrality, rapidity, and transverse-momentum dependence of gluon shadowing and antishadowing on $J/\psi$ production in $d$Au collisions at $\sqrt{s}$=200 GeV

Abstract

We have carried out a wide study of shadowing and antishadowing effects on \jpsi\ production in \dAu\ collisions at $\sqrt{s_{NN}}=200$ GeV. We have studied the effects of three different gluon nPDF sets, using the exact kinematics for a $2\to 2$ process, namely $g+g\to J/\psi +g$ as expected from LO pQCD. We have computed the rapidity dependence of \RCP\ and $R_{d\mathrm{Au}}$ for the different centrality classes of the PHENIX data. For mid rapidities, we have also computed the transverse-momentum dependence of the nuclear modification factor, which cannot be predicted with the usual $2\to 1$ simplified kinematics. All these observables have been compared to the PHENIX data in \dAu\ collisions.

10 pages, 11 figures, talk given by N. Matagne at the conference "thirty years of hadronic physics", Spa, Belgium, April 6-8, 2011, to appear in Few Body Systems

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Cited by in corpus (15)

• Impact-parameter dependent nuclear parton distribution functions: EPS09s and EKS98s and their applications in nuclear hard processes
• Heavy quark pair production in high energy pA collisions: Quarkonium
• Transverse-Momentum Dependence of the J/psi Nuclear Modification in d+Au Collisions at sqrt(s_NN)=200 GeV
• Centrality and pT dependence of J/psi suppression in proton-nucleus collisions from parton energy loss
• Reweighted nuclear PDFs using Heavy-Flavor Production Data at the LHC: nCTEQ15_rwHF & EPPS16_rwHF
• Event activity dependence of inclusive J/ψ production in p-Pb collisions at $\sqrt{s_{NN}}$ = 5.02 TeV with ALICE at the LHC
• Open-beauty production in $p$Pb collisions at $\sqrt{s_{NN}}$=5 TeV: effect of the gluon nuclear densities
• J/ψ and ψ' production in proton(deuteron)-nucleus collisions: lessons from RHIC for the proton-lead LHC run
• Upsilon production in pp and pA collisions: from RHIC to the LHC
• Measurements of charmonium production in p$+$p, p$+$Au, and Au$+$Au collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}$~=~200~GeV with the STAR experiment
• The energy loss effect of incoming gluon from $J/\psi$ production in p-A collisions
• Theory status of quarkonium production in proton-nucleus collisions
• Energy loss of charm quarks from $J/\psi$ production in cold nuclear matter
• The fate of the weakly-bound $\psi (2s)$ in nuclear matter
• Cold Nuclear Matter Effects and Heavy Quark Production in PHENIX