Quarkonium suppression in heavy-ion collisions from coherent energy loss in cold nuclear matter

Abstract

The effect of parton energy loss in cold nuclear matter on the suppression of quarkonia (J/psi, Upsilon) in heavy-ion collisions is investigated, by extrapolating a model based on coherent radiative energy loss recently shown to describe successfully J/psi and Upsilon suppression in proton-nucleus collisions. Model predictions in heavy-ion collisions at RHIC (Au-Au, Cu-Cu, and Cu-Au) and LHC (Pb-Pb) show a sizable suppression arising from the sole effect of energy loss in cold matter. This effect should thus be considered in order to get a reliable baseline for cold nuclear matter effects in quarkonium suppression in heavy-ion collisions, in view of disentangling hot from cold nuclear effects.

20 pages, 9 figures

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Cited by in corpus (17)

• The ALICE experiment: a journey through QCD
• Heavy quarks and jets as probes of the QGP
• Measurement of sequential ${\rm Y}$ suppression in Au+Au collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}$ = 200 GeV with the STAR experiment
• Impact of fully coherent energy loss on heavy meson production in pA collisions
• Measurement of nuclear effects on $\psi (2S)$ production in p-Pb collisions at $\sqrt{{\text{s}}_{\mathrm{NN}}}=8.16$ TeV
• J/$\psi$ production as a function of charged-particle multiplicity in p-Pb collisions at $\sqrt{{\text{s}}_{\mathrm{NN}}}=8.16$ TeV
• Fully coherent energy loss effects on light hadron production in pA collisions
• Quenching of light hadron spectra in pA collisions from fully coherent energy loss
• Centrality dependence of J/$\psi$ and $\psi$(2S) production and nuclear modification in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=$ 8.16 TeV
• Model study on ${\rm Y}(nS)$ modification in small collision systems
• Multiplicity dependence of ${\sigma }_{\psi (2S)}/{\sigma }_{J/\psi }$ in $pp$ collisions at $\sqrt{s}=13$ TeV
• Measurement of $\psi$(2S) production as a function of charged-particle pseudorapidity density in pp collisions at $\sqrt{s}$ = 13 TeV and p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 8.16 TeV with ALICE at the LHC
• J/$\psi$ production at midrapidity in p$-$Pb collisions at $\sqrt{s_{\mathrm{NN}}}=8.16$ TeV
• Observation of the charged-particle multiplicity dependence of ${\sigma }_{\psi (2S)}/{\sigma }_{\text{J}/\psi }$ in pPb collisions at 8.16 TeV
• Coherent gluon radiation: beyond leading-log accuracy
• Measurement of $\psi (2S)$ to $J/\psi$ cross-section ratio as function of multiplicity in $p$Pb collisions at$\sqrt{s_{NN}}=8.16$ TeV
• Measurement of the multiplicity dependence of $\mitΥ$ production ratios in $pp$ collisions at $\sqrt{s}=13$ TeV