We present a set of results obtained by experiment NA50 at the CERN SPS. In Pb-Pb collisions, the phi meson yield and the muon pair mass continuum in the invariant mass range (1.5 - 2.5 GeV/c(2)) exhibit a significant enhancement which increases with the centrality of the collision. The measured J/psi suppression pattern rules out conventional hadronic scenarios and provides evidence for quark-gluon deconfinement.
NA50 results on Pb-Pb interactions at 158 GeV per nucleon
Cicalo C;DE FALCO, ALESSANDRO;PUDDU, GIOVANNA;USAI, GIANLUCA;
2001-01-01
Abstract
We present a set of results obtained by experiment NA50 at the CERN SPS. In Pb-Pb collisions, the phi meson yield and the muon pair mass continuum in the invariant mass range (1.5 - 2.5 GeV/c(2)) exhibit a significant enhancement which increases with the centrality of the collision. The measured J/psi suppression pattern rules out conventional hadronic scenarios and provides evidence for quark-gluon deconfinement.
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