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Charmonium production and nuclear absorption in p-A interactions at 450 GeV

  • B. Alessandro
  • , C. Alexa
  • , R. Arnaldi
  • , M. Atayan
  • , C. Baglin
  • , A. Baldit
  • , 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, N. Constans, 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, C. Gerschel, P. Giubellino, M. B. Golubeva, M. Gonin, A. A. Grigorian, S. Grigorian, J. Y. Grossiord, F. F. Guber, A. Guichard, H. Gulkanyan, M. Idzik, D. Jouan, T. L. Karavitcheva, L. Kluberg, A. B. Kurepin, 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, F. Prino, G. Puddu, C. Quintans, L. Ramello, S. Ramos, P. Rato Mendes, L. Riccati, A. Romana, H. Santos, P. Saturnini, 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
  • University of Turin
  • IFA
  • European Organization for Nuclear Research
  • Yerevan Physics Institute
  • Laboratoire de Physique des Particules
  • Université Blaise Pascal
  • LIP - Lisboa
  • Instituto Superior Técnico
  • York College CUNY
  • IGFL, Université de Lyon, Université Lyon 1
  • Universitá di Cagliari
  • Université Paris-Saclay
  • Laboratory of Molecular Pathology
  • INFN Sezione di Torino
  • Institute for Nuclear Research of the Russian Academy of Sciences
  • Agh University of Science and Technology Faculty of Computer Science

Résultats de recherche: Contribution à un journalArticleRevue par des pairs

Résumé

The production of J/ψ and ψ′ charmonium states in proton-nucleus interactions has been investigated by the NA50 experiment, at the CERN SPS. High statistics data sets were collected with collisions induced by 450 GeV protons incident on Be, Al, Cu, Ag and W targets. The J/ψ and ψ′ production cross-sections have been determined for each p-A system and their dependences on the nucleus size have been studied, leading to the so-called normal nuclear absorption. Comparing the two patterns we see that the nuclear absorption is stronger for the ψ′ than for the J/ψ. Given the high statistics of the data samples, the xF (or rapidity) differential cross-sections of the J/ψ and ψ′ states have also been studied, for each of the target nuclei.

langue originaleAnglais
Pages (de - à)31-40
Nombre de pages10
journalEuropean Physical Journal C
Volume33
Numéro de publication1
Les DOIs
étatPublié - 1 janv. 2004

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