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Transverse momentum and tranverse mass distributions of J/ψ mesons produced in p-A and Pb-Pb interactions at the CERN SPS

  • A. B. Kurepin
  • , B. Alessandro
  • , C. Alexa
  • , R. Arnaldi
  • , M. Atayan
  • , C. Baglin
  • , A. Baldit
  • , M. Bedjidian
  • , S. Beolè
  • , V. Boldea
  • , P. Bordalo
  • , S. R. Borenstein
  • , G. Borges
  • , A. Bussière
  • , L. Capelli
  • , C. Castanier
  • , J. Castor
  • , B. Chaurand
  • , B. Cheynis
  • , E. Chiavassa
  • C. Cicalò, T. Claudino, M. P. Comets, S. Constantinescu, P. Cortese, J. Cruz, A. De Falco, N. De Marco, G. Dellacasa, A. Devaux, S. Dita, O. Drapier, B. Espagnon, J. Fargeix, P. Force, M. Gallio, Y. K. Gavrilov, O. Gerschel, P. Giubellino, M. B. Golubeva, M. Gonin, A. A. Grigorian, S. Grigorian, J. Y. Grossiord, F. F. Guber, A. Guichard, H. Gulkanyan, R. Hakobyan, R. Haroutunian, M. Idzik, D. Jouan, T. L. Karavitcheva, L. Kluberg, Y. Le Bornec, C. Lourenço, P. Macciotta, M. Mac Cormick, A. Marzari-Chiesa, M. Masera, A. Masoni, M. Monteno, A. Musso, P. Petiau, A. Piccotti, J. R. Pizzi, W. L. Prado da Silva, F. Prino, G. Puddu, C. Quintans, L. Ramello, S. Ramos, P. Rato Mendes, L. Riccati, A. Romana, H. Santos, P. Saturnini, E. Scalas, E. Scomparin, S. Serci, R. Shahoyan, F. Sigaudo, M. Sitta, P. Sonderegger, X. Tarrago, N. S. Topilskaya, G. L. Usai, E. Vercellin, L. Villatte, N. Willis, T. Wu
  • Institute for Nuclear Research of the Russian Academy of Sciences
  • University of Turin
  • IFA
  • Yerevan Physics Institute
  • Laboratoire de Physique des Particules
  • Université Blaise Pascal
  • CNRS
  • LIP - Lisboa
  • Instituto Superior Técnico
  • Ip Paris
  • Universitá di Cagliari
  • Université Paris-Saclay
  • Laboratory of Molecular Pathology
  • European Organization for Nuclear Research
  • FPNT
  • Rua São Francisco de Xavier

Résultats de recherche: Contribution à un journalArticleRevue par des pairs

Résumé

We present a study of the transverse momentum and transverse mass of J/ψ mesons produced in nucleus-nucleus and p-nucleus reactions. They include the most recent data collected by the NA50 experiment in Pb-Pb and p-A reactions at 158 GeV/c and 400 GeV/c incident momentum respectively. Together with S-U results previously published by experiment NA38, the mean squared transverse momentum of J/ψ mesons exhibit a scaling behaviour which could result from initial state parton interaction. However, for the most central Pb-Pb collisions a saturation effect is observed as a function of centrality.

langue originaleAnglais
Pages (de - à)C249-C252
journalNuclear Physics A
Volume721
Les DOIs
étatPublié - 30 juin 2003

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