Anomalous J / ψ suppression in In-In collisions at 158 GeV/nucleon

Roberta Arnaldi, R. Arnaldi, R. Averbeck, K. Banicz, J. Castor, B. Chaurand, C. Cicalò, A. Colla, P. Cortese, S. Damjanovic, A. David, A. De Falco, A. Devaux, A. Drees, L. Ducroux, H. En'yo, A. Ferretti, M. Floris, P. Force, N. GuettetA. Guichard, H. Gulkanian, J. Heuser, M. Keil, L. Kluberg, C. Lourenço, J. Lozano, F. Manso, A. Masoni, P. Martins, A. Neves, H. Ohnishi, C. Oppedisano, P. Parracho, P. Pillot, G. Puddu, E. Radermacher, P. Ramalhete, P. Rosinsky, E. Scomparin, J. Seixas, S. Serci, R. Shahoyan, P. Sonderegger, H. J. Specht, R. Tieulent, G. Usai, R. Veenhof, H. K. Wöhri

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21 Citations (Scopus)

Abstract

J / ψ suppression has been studied by the NA60 experiment in Indium-Indium collisions. A new analysis technique, based only on the J / ψ sample, allows to accurately study the centrality dependence of J / ψ production. The observed pattern indicates that a suppression is already present in In-In collisions, setting in at ∼ 90 participant nucleons. A comparison with the available theoretical models is also presented.

Original languageEnglish
Pages (from-to)711-714
Number of pages4
JournalNuclear Physics A
Volume774
Issue number1-4
DOIs
Publication statusPublished - 2006 Aug 7

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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