Charmonium dissociation and recombination at RHIC and LHC

Abstract

Charmonium production at heavy-ion colliders is considered within the comovers interaction model. The formalism is extended by including possible secondary J/psi production through recombination and an estimate of recombination effects is made with no free parameters involved. The comovers interaction model also includes a comprehensive treatment of initial-state nuclear effects, which are discussed in the context of such high energies. With these tools, the model properly describes the centrality and the rapidity dependence of experimental data at RHIC energy, $\sqrt{s}$ = 200 GeV, for both Au+Au and Cu+Cu collisions. Predictions for LHC, $\sqrt{s}$ = 5.5 TeV, are presented and the assumptions and extrapolations involved are discussed.

16 pages, 5 figures

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• Is bottomonium suppression in proton-nucleus and nucleus-nucleus collisions at LHC energies due to the same effects?
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• Prospects for quarkonia production studies in U+U collisions
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• Quarkonium propagation in the quark gluon plasma
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• Energy dependence of $J/\psi$ production in pp collisions with the PACIAE model
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• Impact of unitarization on the $J/\psi$-light meson cross section
• Quarkonium interactions with (hot) hadronic matter
• Quarkonia and heavy-flavour production in CMS
• Resolving the J/ψRHIC puzzles at LHC