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

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

2003-05-26

arxiv.org/abs/nucl-th/0305073v1

Phys.Rev. C68 (2003) 037901

Physics

Nuclear Physics

Nuclear Theory

4 pages, 2 figures

Scientific paper

10.1103/PhysRevC.68.037901

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.

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