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

NA57 Collaboration·F. Antinori
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Abstract

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.

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NA57 Collaboration, F. Antinori. 2006-01-23. Enhancement of hyperon production at central rapidity in 158 A GeV/c Pb-Pb collisions. https://doi.org/10.1088/0954-3899%2F32%2F4%2F003

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