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Correlating Strangeness Enhancement and J/psi Suppression in Heavy Ion Collisions at sqrt(s)NN = 17.2 GeV

F. Becattini, L. Maiani, F. Piccinini, A. D. Polosa, V. Riquer

hep-pharXiv:hep-ph/0508188

Abstract

It is shown that the strangeness enhancement and the J/psi anomalous suppression patterns observed in heavy ion collisions at top SPS energy, sqrt(s)NN = 17.2 GeV, exhibit an interesting correlation if studied as a function of the transverse size of the interaction region. The onset of both phenomena seems to occur when the size exceeds ≈ 4 fm. Strangeness enhancement is defined in terms of the strangeness undersaturation factor gammaS and J/psi anomalous suppression in terms of the deviation from the absorption expected in a purely hadronic scenario.

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