Hyperon production in lead–lead interactions at 40 and 160 A GeV/c

H. Helstrup, F. Antinori, P. A. Bacon, A. Badalà, R. Barbera, A. Belogianni, A. Bhasin, I. J. Bloodworth, M. Bombara, G. E. Bruno, S. A. Bull, R. Caliandro, M. Campbell, W. Carena, N. Carrer, R. F. Clarke, A. Dainese, A. P. De Haas, P. C. De Rijke, D. Di BariS. Di Liberto, R. Divià, D. Elia, D. Evans, K. Fanebust, G. A. Feofilov, R. A. Fini, P. Ganoti, B. Ghidini, G. Grella, H. Helstrup, A. K. Holme, A. Jacholkowski, G. T. Jones, P. Jovanovic, A. Jusko, R. Kamermans, J. B. Kinson, K. Knudson, A. A. Kolozhvari, V. Kondratiev, I. Králik, A. Kravčáková, P. Kuijer, V. Lenti, R. Lietava, G. Løvhøiden, V. Manzari, G. Martinská, M. A. Mazzoni, F. Meddi, A. Michalon, M. Morando, E. Nappi, F. Navach, P. I. Norman, A. Palmeri, G. S. Pappalardo, B. Pastirčák, J. Pišút, N. Pišútova, F. Posa, E. Quercigh, F. Riggi, D. Röhrich, G. Romano, K. Šafařίk, L. Šándor, E. Schillings, G. Segato, M. Sené, R. Sené, W. Snoeys, F. Soramel, M. Spyropoulou-Stassinaki, P. Staroba, T. A. Toulina, R. Turrisi, T. S. Tveter, J. Urbán, F. Valiev, A. Van Den Brink, P. Van De Ven, P. Vande Vyvre, N. Van Eijndhoven, J. Van Hunen, A. Vascotto, T. Vik, O. Villalobos Baillie, L. Vinogradov, T. Virgili, M. F. Votruba, J. Vrláková, P. Závada

Research output: Contribution to journalArticlepeer-review

Abstract

The NA57 experiment has measured strange baryon and antibaryon production in Pb-Pb collisions at 40 A GeV/c and 160 A GeV/c beam momenta. This presentation covers strangeness enhancement and transverse spectra from the 160 A GeV/c data, and energy dependence of the particle yields. Enhancement factors increase with increasing strangeness content of the particle, when production yields from Pb-Pb collisions are compared with those observed in p-Be and p-Pb interactions. The transverse mass spectra have been analysed both with exponential fits and using a transverse flow model.

Original languageEnglish
Pages (from-to)s618-s620
JournalEuropean Physical Journal C
Volume33
DOIs
StatePublished - 1 Jul 2004

Scopus subject areas

  • Engineering (miscellaneous)
  • Physics and Astronomy (miscellaneous)

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