A GeV at CERN SPS
نویسنده
چکیده
The measurement of multiple strange particles provides information on the hadronization features of strongly interacting matter produced in heavy ion collisions. If we assume that a deconfinement phase transition occurs in a heavy ion collision, we have to look for qualitative changes (onset phenomena) when varying external parameters like system size and energy density. Therefore we study the Ξ− and Ξ̄ production as a function of collision centrality and beam energy. This contribution reports on the first results of centrality and energy dependence of the Ξ̄/Ξ ratio and compares it with predictions of the hadron-gas model [1].
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