Study of strangeness enhancement in lead-lead collisions at the CERN SPS

A review of the latest results from the WA97 experiment on the strange particle production in Pb-Pb and p-Pb collisions is presented. Transverse mass spectra and yields of K/sub S//sup 0/, Lambda , Xi , Omega and h/sup -/ (negatively charged particles) have been measured at central rapidity. Yields...

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Detalles Bibliográficos
Autores principales: Andersen, E, Antinori, Federico, Armenise, N, Bakke, H, Bán, J, Barberis, D, Beker, H, Beusch, Werner, Bloodworth, Ian J, Böhm, J, Caliandro, R, Campbell, M, Cantatore, E, Carrer, N, Catanesi, M G, Chesi, Enrico Guido, Dameri, M, Darbo, G, Diaczek, A, Di Bari, D, Di Liberto, S, Earl, B C, Elia, D, Evans, D, Fanebust, K, Fini, R A, Fontaine, J C, Ftácnik, J, Ghidini, B, Grella, G, Guida, M, Heijne, Erik H M, Helstrup, H, Holme, A K, Huss, D, Jacholkowski, A, Jones, G T, Jovanovic, P, Jusko, A, Kachelhoffer, T, Kinson, J B, Kirk, A, Klempt, W, Knudsen, H, Knudson, K, Králik, I, Lenti, V, Lietava, R, Loconsole, R A, Løvhøiden, G, Lupták, M, Mack, V, Manzari, V, Martinengo, P, Mazzoni, M A, Meddi, F, Michalon, A, Michalon-Mentzer, M E, Middelkamp, P, Morando, M, Muciaccia, M T, Nappi, E, Navach, F, Norman, P I, Osculati, B, Pastircák, B, Pellegrini, F, Píska, K, Posa, F, Quercigh, Emanuele, Ricci, R A, Romano, G, Rosa, G, Rossi, L, Rotscheidt, Herbert, Safarík, K, Saladino, S, Salvo, C, Sándor, L, Segato, G F, Sené, M, Sené, R, Simone, S, Snoeys, W, Staroba, P, Szafran, S, Thompson, M, Thorsteinsen, T F, Tomasicchio, G, Torrieri, G D, Tveter, T S, Urbán, J, Venables, M, Villalobos Baillie, O, Virgili, T, Volte, A, Votruba, M F, Závada, P
Lenguaje:eng
Publicado: 2000
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/516315
Descripción
Sumario:A review of the latest results from the WA97 experiment on the strange particle production in Pb-Pb and p-Pb collisions is presented. Transverse mass spectra and yields of K/sub S//sup 0/, Lambda , Xi , Omega and h/sup -/ (negatively charged particles) have been measured at central rapidity. Yields are studied as a function of the number of nucleons participating in the collision N/sub part/. From p-Pb to Pb-Pb collisions the particle yields per participant increase substantially. The enhancement is more pronounced for multistrange particles and exceeds an order of magnitude for Omega. (28 refs).

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