Onset of $J/\psi$ Melting in Quark-Gluon Fluid at RHIC

Abstract

A strong $J/\psi$ suppression in central Au+Au collisions has been observed by the PHENIX experiment at the Relativistic Heavy Ion Collider (RHIC). We develop a hydro+$J/\psi$ model in which hot quark-gluon matter is described by the full (3+1)-dimensional relativistic hydrodynamics and $J/\psi$ is treated as an impurity traversing through the matter. The experimental $J/\psi$ suppression pattern in mid-rapidity is reproduced well by the sequential melting of ${\chi }_{\mathrm{c}}$, ${\psi }^{\prime }$, and $J/\psi$ in dynamically expanding fluid. The melting temperature of directly produced $J/\psi$ is well constrained by the participant-number dependence of the $J/\psi$ suppression and is found to be about $2.T_{\mathrm{c}}$ with $T_{\mathrm{c}}$ being the pseudo-critical temperature.

5 pages, 5 figures, Submitted to Phys. Rev. C. (Rapid Communication)

References in corpus (12)

• J/psi Production vs Centrality, Transverse Momentum, and Rapidity in Au+Au Collisions at sqrt(s_NN) = 200 GeV
• An AdS/CFT Calculation of Screening in a Hot Wind
• Quarkonium correlators and spectral functions at zero and finite temperature
• J/psi Production in Quark-Gluon Plasma
• Evidence for charmonium generation at the phase boundary in ultra-relativistic nuclear collisions
• Constant contribution in meson correlators at finite temperature
• Quarkonium Binding and Dissociation: The Spectral Analysis of the QGP
• Charmonium properties in deconfinement phase in anisotropic lattice QCD
• RHIC Results on J/Psi
• Centrality Dependence of $J/\psi$ Production in Au+Au and Cu+Cu Collisions by the PHENIX Experiment at RHIC
• Bulk and Spectral Observables in Lattice QCD
• Quarkonium production via recombination

Cited by in corpus (7)

• Heavy Quark Diffusion with Relativistic Langevin Dynamics in the Quark-Gluon Fluid
• Critical behavior of charmonia across the phase transition: A QCD sum rule approach
• Centrality-dependent direct photon pt spectra in Au+Au collisions at RHIC
• $R_{AA}$ of $J/\psi$ near mid-rapidity in heavy ion collisions at $\sqrt{s_{NN}}=200$ GeV
• Colour screening scenario for quarkonia suppression in a quasiparticle model compared with data obtained from experiments at the CERN SPS, BNL RHIC, and CERN LHC
• Quarkonia Production in Hot and Cold Matters
• Hydrodynamical model for $J/\psi$ suppression and elliptic flow