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Pseudorapidity distributions of charged particles in Pb-Pb collisions at super proton synchrotron energies from the NA50 experiment

  • M. C. Abreu
  • , B. Alessandro
  • , C. Alexa
  • , R. Arnaldi
  • , M. Atayan
  • , C. Baglin
  • , A. Baldit
  • , M. Bedjidian
  • , S. Beolè
  • , V. Boldea
  • , P. Bordalo
  • , G. Borges
  • , A. Bussière
  • , L. Capelli
  • , C. Castanier
  • , J. Castor
  • , B. Chaurand
  • , I. Chevrot
  • , B. Cheynis
  • , E. Chiavassa
  • C. Cicalò, T. Claudino, M. P. Comets, N. Constans, S. Constantinescu, P. Cortese, A. De Falco, N. De Marco, G. Dellacasa, A. Devaux, S. Dita, O. Drapier, L. Ducroux, B. Espagnon, J. Fargeix, P. Force, M. Gallio, Y. K. Gavrilov, C. 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, 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, 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, S. Silva, M. Sitta, P. Sonderegger, X. Tarrago, N. S. Topilskaya, G. L. Usai, E. Vercellin, L. Villatte, N. Willis
  • LIP - Lisboa
  • Universidade do Algarve
  • University of Turin
  • IFA
  • Yerevan Physics Institute
  • Laboratoire de Physique des Particules
  • Université Blaise Pascal
  • CNRS
  • Instituto Superior Técnico
  • Universitá di Cagliari
  • Université Paris-Saclay
  • 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 journalArticle de conférenceRevue par des pairs

1 Citation (Scopus)

Résumé

We present the measurements of charged particle pseudorapidity distributions dNch/dη performed by the NA50 experiment in Pb-Pb collisions at the CERN SPS. Measurements were done at incident energies of 40 GeV (√s = 8.77 GeV) and 158 GeV (√s = 17.3 GeV) per nucleon over a broad impact parameter range. The multiplicity distributions are studied as a function of centrality using the number of participating nucleons (Npart), or the number of binary nucleon-nucleon collisions (Ncoll). Their values at midrapidity exhibit a linear scaling with Npart at both energies. Particle yield increases approximately by a factor of 2 between √s = 8.77 GeV and √s = 17.3 GeV.

langue originaleAnglais
Pages (de - à)1059-1065
Nombre de pages7
journalPramana - Journal of Physics
Volume60
Numéro de publication5
Les DOIs
étatPublié - 1 janv. 2003
EvénementProceedings of the International Conference on Physics and Astrophysics of Quark-Gluon Plasma - Part II - Jaipur, Inde
Durée: 26 nov. 200130 nov. 2001

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