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  • J/psi production in sqrt s_...
    Ajitanand, N N; Armendariz, R; Azmoun, B; Babintsev, V; Baksay, L; Baldisseri, A; Bennett, R; Bickley, A A; Chang, B S; Comets, M P; Csanád, M; Das, K; Drapier, O; Dubey, A K; Durum, A; Enokizono, A; Eyser, K O; Finger, Jr, M; Fraenkel, Z; Fujiwara, K; Fusayasu, T; Gosset, J; Goto, Y; Grau, N; Hachiya, T; Hadj Henni, A; Hamagaki, H; Heffner, M; Hemmick, T K; Hohlmann, M; Horaguchi, T; Ichihara, T; Imai, K; Inoue, Y; Isenhower, L; Jinnouchi, O; Jouan, D; Kikuchi, J; Kim, D H; Kinney, E; Král, A; Kurihara, N; Kwon, Y; Liu, M X; Malik, M D; Manko, V I; Mikes, P; Miller, T E; Mitrovski, M; Mukhopadhyay, D; Murata, J; Nagamiya, S; Nakamura, T; Newby, J; Oda, S X; Ohnishi, H; Omiwade, O O; Oskarsson, A; Papavassiliou, V; Park, W J; Read, K F; Reuter, M; Reygers, K; Riabov, V; Roche, G; Rosnet, P; Sahlmueller, B; Sawada, S; Semenov, V; Shevel, A; Shimomura, M; Shoji, K; Slunecka, M; Soldatov, A; Sondheim, W E; Sorensen, S P; Sourikova, I V; Staley, F; Stenlund, E; Stoll, S P; Sugitate, T; Sziklai, J; Tabaru, T; Tarján, P; Toia, A; Towell, R S; Tram, V-N; van Hecke, H W; Vinogradov, A A; Vrba, V; Wagner, M; Wang, X R; Wessels, J; White, S N; Winter, D; Woody, C L; Xie, W; Yokkaichi, S; Young, G R; Zajc, W A

    Physical review letters, 2008-Sep-19, 20080919, Volume: 101, Issue: 12
    Journal Article

    Yields for J/psi production in Cu+Cu collisions at sqrt s_NN=200 GeV have been measured over the rapidity range |y|<2.2 and compared with results in p+p and Au+Au collisions at the same energy. The Cu+Cu data offer greatly improved precision over existing Au+Au data for J/psi production in collisions with small to intermediate numbers of participants, in the range where the quark-gluon plasma transition threshold is predicted to lie. Cold nuclear matter estimates based on ad hoc fits to d+Au data describe the Cu+Cu data up to N_part approximately 50, corresponding to a Bjorken energy density of at least 1.5 GeV/fm(3).