Abstract
We have developed a hydro+J/ψ model to study the sequential suppression of charmonia at RHIC energy. The (3+1)-dimensional relativistic ideal hydrodynamics is employed to describe the spacetime evolution of hot and dense matter, and charmonia are treated as impurity traversing through the matter. The observed J/ψ suppression at mid-rapidity in Au+Au collisions at RHIC is reproduced well by the sequential melting of χc, ψ′ and J/ψ in the medium. The melting temperature of directly produced J/ψ is well determined to be ∼2Tc. Azimuthal anisotropy of J/ψ (v2) is calculated with this model. Survival probability and azimuthal anisotropy in the ‘hot-wind scenario’ are also presented.
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