J/ψ and ψ' production in proton(deuteron)-nucleus collisions: lessons from RHIC for the proton-lead LHC run

Abstract

We study the impact of different cold nuclear matter effects both on J/ψ and ψ' production, among them the modification of the gluon distribution in bound nucleons, commonly known as gluon shadowing, and the survival probability for a bound state to escape the nucleus --the nuclear absorption. Less conventional effects such as saturation and fractional energy loss are also discussed. We pay a particular attention to the recent PHENIX preliminary data on ψ' production in dAu collisions at sqrt{s}=200 GeV, which show a strong suppression for central collisions, 5 times larger than the one obtained for J/ψ production at the same energy. We conclude that none of the abovementioned mechanisms can explain this experimental result.

4 pages, 2 tables, 2 figures, contribution to Rencontres du Vietnam, 'Heavy Ion Collisions in the LHC Era', 15-21 July 2012, Quy Nhon, Vietnam

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• EPS09 - a New Generation of NLO and LO Nuclear Parton Distribution Functions
• AAMQS: A non-linear QCD analysis of new HERA data at small-x including heavy quarks
• Revisiting scaling properties of medium-induced gluon radiation
• Centrality, rapidity, and transverse-momentum dependence of gluon shadowing and antishadowing on $J/\psi$ production in $d$Au collisions at $\sqrt{s}$=200 GeV
• Transverse momentum dependence of J/psi shadowing effects
• Quarkonium as a tool: cold nuclear matter effects

Cited by in corpus (7)

• Heavy-flavour and quarkonium production in the LHC era: from proton-proton to heavy-ion collisions
• Predictions for Cold Nuclear Matter Effects in $p+$Pb Collisions at $\sqrt{s_{{}_{NN}}}=8.16$ TeV
• Suppression of $\psi$(2S) production in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Centrality dependence of $\psi$(2S) suppression in p-Pb collisions at $\sqrt{{\text{s}}_{\mathrm{NN}}}$ = 5.02 TeV
• Predictions for $p+$Pb Collisions at $\sqrt{s_{NN}}=5$ TeV: Comparison with Data
• Open-beauty production in $p$Pb collisions at $\sqrt{s_{NN}}$=5 TeV: effect of the gluon nuclear densities
• Theory status of quarkonium production in proton-nucleus collisions