Lambda, Xi and Omega production in Pb Pb collisions at 158-A-GeV/c

Enhanced production of strange baryons and anti-baryons at central rapidity in S-W and S-z.sbnd;S with respect to p-A reactions has been reported by the CERN experiments WA85 and WA94. The WA97 experiment is extending such a study to Pb Pb collisions making use of the newly developed silicon pixel detectors. Results on Λ, Ξ − and Ω − production in Pb Pb collisions at 158 A GeV/ c at central rapidity are presented. Transverse mass spectra and particle ratios are presented. Hyperon yields are given as a function of the collision centrality and compared with those obtained from p-Pb collisions using the same experimental setup.

talk: Tsukuba 1997/12/01
scattering: heavy ion
p nucleus: nuclear reaction
lead
hyperon: hadroproduction
antihyperon: hadroproduction
yield: (Omega- Xi Lambda)
dependence: impact parameter
mass spectrum: transverse
slope

References(12)

Figures(0)

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