Anomalous J/$\psi$ suppression in In-In collisions at 158 GeV/nucleon
- Arnaldi, R.
- Averbeck, R.
- Banicz, K.
- Castor, J.
- Chaurand, B.
- Chen, W.,
- Cicalo, C.
- Colla, A.
- Cortese, P.
- Damjanovic, S.
- David, A.
- Devaux, A.
- Drees, A.
- Ducroux, L.
- En'Yo A., H.
- De Falco, A.
- Floris, M.
- Force, P.
- Guettet, N.
- Guichard, A.
- Gulkanian, H.
- Heuser, J.
- Keil, M.
- Kluberg, L.
- Lourenço, C.
- Lozano, J.
- Manso, F.
- Masoni, A.
- Martins, P.
- Neves, A.
- Ohnishi, H.
- Oppedisano, C.
- Parracho, P.
- Pillot, Philippe
- Puddu, G.
- Radermacher, E.
- Ramalhete, P.
- Rosinsky, P.
- Scomparin, E.
- Seixas, J.
- Serci, S.
- Sonderegger, P.
- Specht, H.J.
- Tieulent, R.
- Usai, G.
- Veenhof, R.
- Wöhri, H.K.
DOIAbstract
NA60J/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 not, vert, similar 90 participant nucleons. A comparison with the available theoretical models is also presented
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