Threshold model and the latest NA50 data on $J/\psi$ suppression in Pb+Pb collisions

Abstract

Using the QGP motivated threshold model, where all the $J/\psi$'s are suppressed above a threshold density, we have analyzed the latest version of the NA50 data on the centrality dependence of the $J/\psi$ over Drell-Yan ratio. The data are not well explain in the model, unless the threshold density is largely smeared. Large smeared threshold density effectively excludes creation of any deconfined medium in the collision.

4 pages, 2 figures

References in corpus (5)

• $J/\psi$ suppression in Pb+Pb collisions, a conventional description
• J/$\psi$ production and suppression in nuclear collisions
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• Nuclear absorption and $J/\psi$ suppression in Pb+Pb collisions
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Cited by in corpus (2)

• Charmonium and bottomonium production in heavy-ion collisions
• $J/\psi$ production in Au+Au/Cu+Cu collisions at ${\sqrt{s}}_{NN}$=200 GeV and the threshold model