Transverse mass distributions of strange particles produced in Pb-Pb collisions at 158 A GeV/c

Experiment NA57 has collected high statistics, high purity samples of $K^0_s$, $\Lambda$, $\Xi$ and $\Omega$ 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 about the most cent...

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Detalles Bibliográficos
Autores principales: Bruno, G.E., Antinori, F., Bacon, P., Badala, A., Barbera, R., Belogianni, A., Bhasin, A., Bloodworth, I.J., Bombara, M., Bull, S.A., Caliandro, R., Campbell, M., Carena, Wisla, Carrer, N., Clarke, R.F., Dainese, A., de Haas, A.P., de Rijke, P.C., Di Bari, D., Di Liberto, S., Divia, R., Elia, D., Evans, D., Hetland, Kristin Fanebust, Feofilov, G.A., Fini, R.A., Ganoti, P., Ghidini, B., Grella, G., Helstrup, H., Holme, A.K., Jacholkowski, A., Jones, G.T., Jovanovic, P., Jusko, A., Kamermans, R., Kinson, J.B., Knudson, K., Kolozhvari, A.A., Kondratiev, V., Kralik, I., Kravcakova, A., Kuijer, P., Lenti, V., Lietava, R., Lovhoiden, G., Manzari, V., Martinska, G., Mazzoni, M.A., Meddi, F., Michalon, A., Morando, M., Navach, F., Norman, P.I., Palmeri, A., Pappalardo, G.S., Pastircak, B., Pisut, Jan, Pisutova, N., Quercigh, E., Riggi, F., Rohrich, D., Romano, G., Safarik, K., Sandor, L., Schillings, E., Segato, G., Sene, M., Sene, R., Snoeys, W., Soramel, F., Spyropoulou-Stassinaki, M., Staroba, P., Toulina, T.A., Turrisi, R., Tveter, T.S., Urban, J., Valiev, F.F., van den Brink, A., van de Ven, P., Vande Vyvre, P., van Eijndhoven, N., van Hunen, J., Vascotto, A., Vik, T., Villalobos Baillie, O., Vinogradov, L., Virgili, T., Votruba, M.F., Vrlakova, J., Zavada, P.
Lenguaje:eng
Publicado: 2003
Materias:
Nuclear Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/686505
Descripción
Sumario:Experiment NA57 has collected high statistics, high purity samples of $K^0_s$, $\Lambda$, $\Xi$ and $\Omega$ 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 about the most central 55% 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 under consideration and, for the first time at the SPS, as a function of the event centrality.

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