Study of the transverse mass spectra of strange particles in Pb-Pb collisions at 158 a GeV/c

F. Antinori, P. Bacon, A. Badalà, R. Barbera, A. Belogianni, A. Bhasin, I. J. Bloodworth, M. Bombara, G. E. Bruno, S. A. Bull, R. Caliandro, M. Campbell, W. Carena, N. Carrer, R. F. Clarke, A. Dainese, A. P. De Haas, P. C. De Rijke, D. Di Bari, S. Di LibertoR. Divià, D. Elia, D. Evans, G. A. Feofilov, R. A. Fini, P. Ganoti, B. Ghidini, G. Grella, H. Helstrup, K. F. Hetland, A. K. Holme, A. Jacholkowski, G. T. Jones, P. Jovanovic, A. Jusko, R. Kamermans, J. B. Kinson, K. Knudson, A. A. Kolozhvari, V. Kondratiev, I. Králik, A. Kravčáková, P. Kuijer, V. Lenti, R. Lietava, G. Løvhøiden, V. Manzari, G. Martinská, M. A. Mazzoni, F. Meddi, A. Michalon, M. Morando, E. Nappi, F. Navach, P. I. Norman, A. Palmeri, G. S. Pappalardo, B. Pastirčák, J. Pišút, N. Pišútová, R. J. Platt, F. Posa, E. Quercigh, F. Rigg, D. Röhrich, G. Romano, K. Šafařík, L. Šándor, E. Schillings, G. Segato, M. Sené, R. Sené, W. Snoeys, F. Soramel, M. Spyropoulou-Stassinaki, P. Staroba, T. A. Toulina, R. Turrisi, T. S. Tveter, J. Urbán, F. F. Valiev, A. Van Den Brink, P. Van De Ven, P. Vande Vyvre, N. Van Eijndhoven, J. Van Hunen, A. Vascotto, T. Vik, O. Villalobos Baillie, T. Virgili, M. F. Votruba, J. Vrláková, P. Závada

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32 Scopus citations

Abstract

The NA57 experiment has collected high statistics, high purity samples of KS0 and Λ, ξ and Ω hyperons produced in Pb-Pb collisions at 158 A GeV/c. In this paper we present a study of the transverse mass spectra of these particles for a sample of events corresponding to the most central 53% of the inelastic Pb-Pb cross-section. We analyse the transverse mass distributions in the framework of the blast-wave model for the full sample and, for the first time at the SPS, as a function of the event centrality.

Original languageEnglish
Pages (from-to)823-840
Number of pages18
JournalJournal of Physics G: Nuclear and Particle Physics
Volume30
Issue number6
DOIs
StatePublished - 1 Jun 2004

Scopus subject areas

  • Nuclear and High Energy Physics

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