Strangeness enhancements at central rapidity in 40 A GeV/c Pb-Pb collisions

Results are presented on neutral kaon, hyperon and antihyperon production in Pb-Pb and p-Be interactions at 40 GeV/c per nucleon. The enhancement pattern follows the same hierarchy as seen in the higher energy data - the enhancement increases with the strangeness content of the hyperons and with the...

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Detalles Bibliográficos
Autores principales: Antinori, F, Bacon, P A, Badala, A, Barbera, R, Belogianni, A, Bloodworth, I J, Bombara, M, Bruno, G E, Bull, S A, Caliandro, R, Campbell, M, Carena, W, Carrer, N, Clarke, R F, Dainese, A, Di Bari, D, Di Liberto, S, Divia, R, Elia, D, Evans, D, Feofilov, G A, Fini, R A, Ganoti, P, Ghidini, B, Grella, G, Helstrup, H, Hetland, K F, Holme, A K, Jacholkowski, A, Jones, G T, Jovanovic, P, Jusko, A, Kamermans, R, Kinson, J B, Knudson, K, Kondratiev, V, Kralik, I, Kravcakova, A, Kuijer, P, Lenti, V, Lietava, R, Lovhoiden, G, Manzari, V, Mazzoni, M A, Meddi, F, Michalon, A, Morando, M, Norman, P I, Palmeri, A, Pappalardo, G S, Platt, R J, Quercigh, E, Riggi, F, Rohrich, D, Romita, R, Safarik, K, Sandor, L, Schillings, E, Segato, G, Sene, M, Sene, R, Snoeys, W, Soramel, F, Spyropoulou-Stassinaki, M, Staroba, P, Turrisi, R, Tveter, T S, Urban, J, van de Ven, P, Vande Vyvre, P, Vascotto, A, Vik, T, Villalobos Baillie, O, Vinogradov, L, Virgili, T, Votruba, M F, Vrlakova, J, Zavada, P
Lenguaje:eng
Publicado: 2010
Materias:
Nuclear Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1088/0954-3899/37/4/045105
http://cds.cern.ch/record/1233072
Descripción
Sumario:Results are presented on neutral kaon, hyperon and antihyperon production in Pb-Pb and p-Be interactions at 40 GeV/c per nucleon. The enhancement pattern follows the same hierarchy as seen in the higher energy data - the enhancement increases with the strangeness content of the hyperons and with the centrality of collision. The centrality dependence of the Pb-Pb yields and enhancements is steeper at 40 than at 158 A GeV/c. The energy dependence of strangeness enhancements at mid-rapidity is discussed.

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