The onset of the anomalous J/psi suppression in Pb-Pb collisions at the CERN SPS

Details The onset of the anomalous J/psi suppression in Pb-Pb collisions at the CERN SPS The onset of the anomalous J/psi suppression in Pb-Pb collisions at the CERN SPS

2001-06-20

arxiv.org/abs/hep-ex/0106079v1

Physics

High Energy Physics

High Energy Physics - Experiment

4 pages, 3 figures, Proceedings of the "XXXVIth Rencontres de Moriond", Les Arcs, 4 pages, 3 figures, Proceedings of the "XXXV

Scientific paper

The J/psi suppression observed by the NA50 experiment is one of the most striking signatures for quark gluon plasma formation in Pb-Pb collisions at 158 AGeV. The J/psi production has been studied as a function of the centrality of the collision estimated via the forward energy EZDC released in a zero degree calorimeter (ZDC). The study of the correlation between the number of participant nucleons in the collisions, Npart, and EZDC allows to check whether the J/psi suppression pattern vs. EZDC is compatible with a sudden J/psi suppression mechanism expressed as a function of Npart.

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