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Journal of Physics G: Nuclear and Particle Physics 32 (2006) 2065-2080
Transverse dynamics of Pb--Pb collisions at 40 A GeV/c viewed by strange hadrons
F. Antinori, P. Bacon, A. Badala, R. Barbera, A. Belogianni, I. J Bloodworth, M. Bombara, G. E Bruno, S. A Bull, R. Caliandro, M. Campbell1, W. Carena1, N. Carrer1, R. F Clarke, A. Dainese, D. Di Bari, S. Di Liberto, R. Divia1, 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. Knudson1, V. Kondratiev, I. Kralik, A. Kravcakova, P. Kuijer, V. Lenti, R. Lietava, G. Lovhoiden, V. Manzari, M.A. Mazzoni, F. Meddi, A. Michalon2, M. Morando, P.I. Norman, A. Palmeri, G.S. Pappalardo, B. Pastircak, R.J. Platt, E. Quercigh, F. Riggi, D. Rohrich, G. Romano, R. Romita, K. Safarik1, L. Sandor, E. Schillings, G. Segato, M. Sené3, R. Sené3, W. Snoeys1, F. Soramel, M. Spyropoulou-Stassinaki, P. Staroba, R. Turrisi, T.S. Tveter, J. Urban, P. van de Ven, P. Vande Vyvre1, A. Vascotto1, T. Vik, O. Villalobos Baillie, L. Vinogradov, T. Virgili, M.F. Votruba, J. Vrlakova, P. Zavada
For the NA57 collaboration(s)

The transverse mass spectra of K0s, Lambda, Xi and Omega particles produced in Pb-Pb collisions at 40 A GeV/c have been studied for a sample of events corresponding to the most central 53% of the inelastic Pb-Pb cross-section. We analyze the distributions in the framework of a parameterized model inspired by hydrodynamics. The dependence of the freeze-out parameters on particle species and event centrality is discussed and comparisons with results at higher energy are shown.
1:  CERN - European Organization for Nuclear Research
2:  DRS-IPHC - Département Recherches Subatomiques
3:  PCC - Physique Corpusculaire et Cosmologie - Collège de France
Physics/High Energy Physics - Experiment

Physics/Nuclear Experiment
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