| Hyperon Production in Pb + Pb Collisions at 158 A GeV/c (2008) | |||||||||||||
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| . Preliminary results from WA97 measurements on #, # and# production in lead-lead and proton-lead collisions are presented, along with a comparison of WA97 proton-lead data with previous WA85 proton-tungsten results. The ratio##t seems to be enhanced in lead initiated reactions compared to proton initiated reactions. 1. Introduction An enhanced production of strange particles has long been suggested as a tool to identify the establishment of a flavour equilibrated system in particle reactions [1, 2]. The equilibration times are expected to be much shorter in a Quark Gluon Plasma than in a hadron gas [3, 4]. In particular, multistrange (anti-)baryons have been suggested as a useful probe of the early phases of the collision [5], since hadronic production of such particles is strongly suppressed due to high mass thresholds. An enhanced production of multistrange (anti-)baryons has already been observed in sulphur initiated reactions by the WA85 and WA94 collaborations [6, 7]. 2. Experim... | |||||||||||||
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