Abstract
TheJ/Ψ production in 158 A GeV Pb-Pb interactions is studied, in the dimuon decay channel, as a function of centrality, as measured with the electromagnetic or, alternatively, with the very forward hadronic calorimeters. After a first sharp variation at mid-centrality, both patterns continue to fall down and exhibit a curvature change at high centrality values. This trend excludes any conventional hadronic model and finds a natural explanation in a deconfined quark-gluon phase scenario.
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On leave of absence from York College CUNY
On leave of absence of YerPhI, Yerevan, Armenia
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bordalo, P., Abreu, M.C., Alessandro, B. et al. Study of deconfinement in NA50. Pramana - J Phys 60, 817–828 (2003). https://doi.org/10.1007/BF02705177
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DOI: https://doi.org/10.1007/BF02705177