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J/ψ and φ production from proton to Pb induced reactions at CERN SPS

  • Denis Jouan
  • , 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. DeFalco, N. DeMarco, G. Dellacasa, A. Devaux, S. Dita, O. Drapier, B. Espagnon, J. Fargeix, P. Force, M. Gallio, Y. K. Gavrilov, C. Gerschel, P. Giubellino, M. B. Golubeva, M. Gonin, S. Grigorian, J. Y. Grossiord, F. F. Guber, A. Guichard, H. Gulkanyan, R. Hakobyan, R. Haroutunian, M. Idzik, T. L. Karavitcheva, L. Kluberg, A. B. Kurepin, Y. Le Bornec, C. Lourenço, P. Macciotta, M. Mac Cormick, A. Marzari-Chiesa, M. Maresa, A. Masoni, M. Monteno, A. Musso, P. Petiau, A. Piccotti, J. R. Pizzi, W. L. Prado da Silva, F. Prino, G. Puddu, C. Quintans, J. 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
  • Université Paris-Saclay
  • University of Turin
  • IFA
  • Yerevan Physics Institute
  • Laboratoire de Physique des Particules
  • Université Blaise Pascal
  • CNRS
  • LIP - Lisboa
  • Instituto Superior Técnico
  • Universitá di Cagliari
  • Laboratory of Molecular Pathology
  • Institute for Nuclear Research of the Russian Academy of Sciences
  • European Organization for Nuclear Research
  • Agh University of Science and Technology Faculty of Computer Science
  • Rua São Francisco de Xavier

Résultats de recherche: Contribution à un journalArticleRevue par des pairs

Résumé

A new set of results obtained by the NA50 experiment for the J/ψ production at the CERN SPS is presented. Peripheral Pb-Pb collisions benefit from an improved setup, confirming the departure from ordinary production observed for the most central collisions, which has suggested the occurrence of a quark gluon plasma formation. Improved comparative analyses of older datas confirms the φ meson yield increase with centrality and between systems. The interest of the ratio φ/ w as a direct measurement of the strangeness increase is underlined.

langue originaleAnglais
Pages (de - à)C253-C256
journalNuclear Physics A
Volume721
Les DOIs
étatPublié - 30 juin 2003

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