1. Energy dependence of hyperon production in nucleus–nucleus collisions at SPS
- Author
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I. J. Bloodworth, K. Šafařík, A. Jusko, P.A. Bacon, N. Carrer, A. Jacholkowski, P van de Ven, Giuseppe Bruno, P. Jovanovic, W. Snoeys, Dieter Røhrich, L. Šándor, Marek Bombara, P.C. de Rijke, Håvard Helstrup, R. Kamermans, M.F. Votruba, Federico Antinori, J. Urban, A. Vascotto, F.F. Valiev, G.S. Pappalardo, V. Lenti, A.K. Holme, M. Morando, N. Pišútová, F. Soramel, O. Villalobos Baillie, B. Ghidini, M. A. Mazzoni, V. P. Kondratiev, Rocco Caliandro, Adela Kravcakova, F. Posa, Roman Lietava, A. Belogianni, A.P. de Haas, E Quercigh, A. Palmeri, Andrea Dainese, G Martinská, M. Sené, P. Vande Vyvre, F. Navach, Anatoly Kolozhvari, Davide Elia, R. Turrisi, Leonid Vinogradov, Kristin Fanebust Hetland, M. Campbell, Franco Meddi, A. van den Brink, J. Pišút, K. Knudson, Ivan Kralik, Trine Spedstad Tveter, Francesco Riggi, T.A. Toulina, Vito Manzari, E. Schillings, Tiziano Virgili, D. Evans, N. van Eijndhoven, Pavel Staroba, P. G. Kuijer, Roberto Divia, Janka Vrlakova, P.I. Norman, G. T. Jones, M. Spyropoulou-Stassinaki, Anju Bhasin, G. A. Feofilov, E. Nappi, Wisla Carena, D. Di Bari, S A Bull, G. Romano, R. Sené, J. van Hunen, Petr Zavada, J.B. Kinson, Paraskevi Ganoti, S. Di Liberto, B. Pastirčák, Gunnar Løvhøiden, G.F. Segato, Roberto Barbera, Angela Badala, R. A. Fini, A. Michalon, T. Vik, R. F. Clarke, G. Grella, Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), NA57, and Heyd, Yvette
- Subjects
PB-PB COLLISIONS ,Nuclear and High Energy Physics ,Particle physics ,Nuclear Theory ,FOS: Physical sciences ,Hyperons ,Lambda baryon ,Xi baryon ,Nuclear physics ,Nuclear Physics - Experiment ,Rapidity ,Nuclear Experiment (nucl-ex) ,Nuclear Experiment ,Physics ,High Energy Physics::Phenomenology ,Hyperon ,NA57 ,CERN SPS ,Omega baryon ,[PHYS.HPHE] Physics [physics]/High Energy Physics - Phenomenology [hep-ph] ,Baryon ,[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] ,Antimatter ,Quark–gluon plasma ,High Energy Physics::Experiment ,Quark Gluon Plasma ,PB+PB COLLISIONS - Abstract
A measurement of strange baryon and antibaryon production in Pb-Pb collisions has been carried out by the NA57 experiment at the CERN SPS, with 40 and 158 A GeV/c beam momentum. Results on $\Lambda$, $\Xi$ and $\Omega$ hyperon yields at mid-rapidity in the most central 53% of Pb-Pb collisions at 40 A GeV/c are presented and compared with those obtained at higher energy, in the same collision centrality range. The $\Lambda$ and $\Xi^-$ yields per unit rapidity stay roughly constant while those of $\Omega^-$, $\bar\Lambda$, $\bar\Xi^+$ and $\bar\Omega^+$ increase when going to the higher SPS energy. Hyperon yields at the SPS are compared with those from the STAR experiment in $\sqrt{s_{NN}}$ = 130 GeV Au-Au collisions at RHIC., Comment: 9 pages, 4 figures, 3 tables, accepted for publication in Physics Letters B
- Published
- 2004