Theoretical Perspective on Quarkonia from SPS via RHIC to LHC

Abstract

The objective of this paper is to assess the current theoretical understanding of the extensive set of quarkonium observables (for both charmonia and bottomonia) that have been attained in ultrarelativistic heavy-ion collisions over two orders of magnitude in center-of-mass energy. We briefly lay out and compare the currently employed theoretical frameworks and their underlying transport coefficients, and then analyze excitation functions of quarkonium yields to characterize the nature of the varying production mechanisms. We argue that an overall coherent picture of suppression and regeneration mechanisms emerges which enables to deduce insights on the properties of the in-medium QCD force from SPS via RHIC to LHC, and forms a basis for future quantitative studies.

arXiv comment8 pages, 10 figures; contribution to proceedings of XXVIth International Conference on Ultrarelativistic Nucleus-Nucleus Collisions (Quark Matter 2017), Chicago (IL, USA), Feb. 05-11, 2017

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• Heavy Quarkonium in Extreme Conditions
• Color Screening and Regeneration of Bottomonia in High-Energy Heavy-Ion Collisions
• Open Heavy-Flavor Production in Heavy-Ion Collisions
• Bottomonium suppression using a lattice QCD vetted potential
• Heavy-Quark Diffusion in the Quark-Gluon Plasma
• $T$-matrix Approach to Quark-Gluon Plasma
• In-Medium Charmonium Production in Proton-Nucleus Collisions
• Extraction of the Heavy-Quark Potential from Bottomonium Observables in Heavy-Ion Collisions
• Thermal Heavy Quark Self-Energy from Euclidean Correlators
• Real Time Quarkonium Transport Coefficients in Open Quantum Systems from Euclidean QCD
• QCD Challenges from pp to A-A Collisions
• $J/\psi$ regeneration in a hadron gas: an update
• Production of ${\rm Y}(\text{nS})$ mesons in Pb+Pb and $pp$ collisions at 5.02 TeV
• Recombination of $B_c$ mesons in ultra-relativistic heavy-ion collisions
• Gluo-dissociation of Heavy Quarkonium in the Quark-Gluon Plasma Revisited
• Heavy Quarkonium Dissociation by Thermal Gluons at Next-to-leading Order in the Quark-Gluon Plasma
• Letter of Intent: the NA60+ experiment
• Non-perturbative quarkonium dissociation rates in strongly coupled quark-gluon plasma
• Production of bottomonia states in proton+proton and heavy-ion collisions
• Suppression of quarkonia in PbPb collisions at $\sqrt{s_{NN}}$ = 5.02 TeV