Affiliation:
1. Institut de Physique Nucléaire Orsay Cedex, F-91406 France;
2. Institut für Theoretische Physik der Universität Heidelberg Philosophenweg 19 Heidelberg, D-69120 Germany;
Abstract
▪ Abstract Data and their interpretations are reviewed for J/ψ and ψ′ production in heavy-ion collisions with particular emphasis on the recently reported anomaly in Pb-Pb reactions. The observed suppressions in pA collisions are discussed in terms of final-state absorption of a pre-meson and the pT distributions due to parton scattering in the initial state. The experimental setup is described and the various results for J/ψ and ψ′ suppressions, including their pT-dependence, are presented. The data, in particular the observed anomalous suppression in Pb-Pb collisions, are discussed in the light of the proposed ideas, among them quark-gluon plasma formation and suppression via co-movers.
Subject
Nuclear and High Energy Physics
Cited by
66 articles.
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