Enhancement of hyperon production at central rapidity in 158 A GeV/c Pb-Pb collisions

F Antinori, Paul Bacon, Ian Bloodworth, Stephen Bull, Rory Clarke, David Evans, Goronwy Tudor Jones, Predrag Jovanovic, Anton Jusko, John Kinson, Roman Lietava, Paul Norman, Richard Platt, Michael Thompson, Orlando Villalobos Baillie, Milan Votruba

Research output: Contribution to journalArticle

101 Citations (Scopus)


Results are presented on hyperon and antihyperon production in Pb-Pb, pPb and pBe collisions at 158 GeV/c per nucleon. Lambda, Xi and Omega yields have been measured at central rapidity and medium transverse momentum as functions of the centrality of the collision. Comparing the yields in Pb-Pb to those in pBe interactions, strangeness enhancement is observed. The enhancement increases with the centrality and with the strangeness content of the hyperons, reaching a factor of about 20 for the Omega in the central Pb-Pb collisions.
Original languageEnglish
Pages (from-to)427-441
Number of pages15
JournalJournal of Physics G: Nuclear and Particle Physics
Publication statusPublished - 1 Apr 2006


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