Transverse mass distributions of strange particles produced in Pb-Pb collisions at 158 A GeV/c
G. E. Bruno
Abstract
Experiment NA57 has collected high statistics, high purity samples of K0s, Λ, Ξ and Ω produced in Pb-Pb collisions at 158 A GeV/c. In this paper we present a study of the transverse mass spectra of these particles for a sample of events corresponding to about the most central 55% of the inelastic Pb-Pb cross section. We analyse the transverse mass distributions in the framework of the blast-wave model for the full sample under consideration and, for the first time at the SPS, as a function of the event centrality.
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