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Results from NA57
Helstrup H., Antinori F., Bacon P.A., Badala A., Barbera R. et al
Dans Journal of Physics G - 8th International Conference of Strangeness in Quark Matter, Los Angeles : États-Unis - http://hal.in2p3.fr/in2p3-00102878
Physique/Physique Nucléaire Expérimentale
Physique/Physique des Hautes Energies - Expérience
Results from NA57
H. Helstrup, F. Antinori, P.A. Bacon, A. Badala, R. Barbera, A. Belogianni, I.J. Bloodworth, M. Bombara, G. Bruno, S.A. Bull, R. Caliandro, M. Campbell1, W. Carena1, N. Carrer1, R.F. Clarke, A. Dainese, D. Di Bari, S. Di Liberto, R. Divia, D. Elia, D. Evans, G.A. Feofilov, R. Fini, P. Ganoti, B. Ghidini, G. Grella, 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. Kravakova, 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. Pastirak, R.J. Platt, E. Quercigh, F. Riggi, D. Rohrich, G. Romano, K. Safarik1, L. Sandor, E. Schillings, G. Segato, M. Sene3, R. Sene3, 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, I. Vinogradov, T. Virgili, M.F. Votruba, J. Vrlakova, P. Zavada
1 :  CERN - European Organization for Nuclear Research
http://www.cern.ch
CERN
Suisse
2 :  DRS-IPHC - Département Recherches Subatomiques
CNRS : UMR7178 – IN2P3 – Université Louis Pasteur - Strasbourg I
23 rue du Loess - BP28 67037 Strasbourg cedex 2
France
3 :  PCC - Physique Corpusculaire et Cosmologie - Collège de France
CNRS : UMR7553 – IN2P3 – Université Paris VII - Paris Diderot
11, place Marcelin Berthelot - 75231 Paris Cedex 05
France
The NA57 experiment has measured strange baryon and antibaryon production in Pb-Pb collisions at 40 A GeV/c and 158 A GeV/c beam momenta. Expansion dynamics has been investigated; transverse dynamics using blast wave fits, longitudinal dynamics obtained from rapidity distributions. HBT analysis gives results compatible with those obtained by the other methods. Similar values are observed for the transverse and longitudinal ow parameters. Particles carrying all levels of strangeness have been studied. Enhancement factors increase with the strangeness content of the particle, reaching above 20 for $\Omega$s in central collisions. Enhancement values are strikingly similar for SPS and RHIC energies. Centralto-peripheral nuclear modication factors have been measured. The baryon/meson pattern displays similarities with that observed at RHIC
NA57

Communications avec actes
2006
Journal of Physics G
internationale
32
S89-S95
IOP Publishing

8th International Conference of Strangeness in Quark Matter
Los Angeles
États-Unis
26/03/2006
31/03/2006
H. Helstrup

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