J/psi suppression in Pb-Pb collisions at CERN SPS

Details J/psi suppression in Pb-Pb collisions at CERN SPS J/psi suppression in Pb-Pb collisions at CERN SPS

2001-01-29

arxiv.org/abs/hep-ex/0101052v1

Physics

High Energy Physics

High Energy Physics - Experiment

ISMD2000 proceedings (7 pages, 3 figures)

Scientific paper

The NA38 and NA50 experiments at the CERN SPS have measured charmonium production in different colliding systems with the aim of observing a phase transition from ordinary hadronic matter towards a state in which quarks and gluons are deconfined (Quark Gluon Plasma, QGP). In fact it was predicted that the J/psi yield should be suppressed in deconfined matter. The analysis of the data collected by the NA50 experiment with Pb-Pb collisions at 158 GeV/c per nucleon shows that the J/psi is anomalously suppressed in central collisions and the observed pattern can be considered as a strong indication for QGP production.

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