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

dc.creatorGunji, T.
dc.creatorHamagaki, H.
dc.creatorHatsuda, T.
dc.creatorHirano, T.
dc.date2007-03-06
dc.date2007-07-06
dc.date.accessioned2026-07-07T11:59:11Z
dc.date.available2026-07-07T11:59:11Z
dc.descriptionA strong $J/ψ$ suppression in central Au+Au collisions has been observed by the PHENIX experiment at the Relativistic Heavy Ion Collider (RHIC). We develop a hydro+$J/ψ$ model in which hot quark-gluon matter is described by the full (3+1)-dimensional relativistic hydrodynamics and $J/ψ$ is treated as an impurity traversing through the matter. The experimental $J/ψ$ suppression pattern in mid-rapidity is reproduced well by the sequential melting of $χ_{\rm c}$, $ψ'$, and $J/ψ$ in dynamically expanding fluid. The melting temperature of directly produced $J/ψ$ is well constrained by the participant-number dependence of the $J/ψ$ suppression and is found to be about $2.T_{\rm c}$ with $T_{\rm c}$ being the pseudo-critical temperature.
dc.description5 pages, 5 figures, Submitted to Phys. Rev. C. (Rapid Communication)
dc.identifierhttps://arxiv.org/abs/hep-ph/0703061
dc.identifierhttp://arxiv.org/abs/hep-ph/0703061
dc.identifierPhys.Rev.C76:051901,2007
dc.identifierdoi:10.1103/PhysRevC.76.051901
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/206477
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleOnset of $J/ψ$ Melting in Quark-Gluon Fluid at RHIC
dc.typetext

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