The NA57 experiment has collected high statistics, high purity samples of K-S(0) and Lambda, Xi and Omega hyperons 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 the most central 53% 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 and, for the first time at the SPS, as a function of the event centrality.
|Titolo:||Study of the transverse mass spectra of strange particles in Pb-Pb, collisions at 158 A GeV/c|
|Data di pubblicazione:||2004|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1088/0954-3899/30/6/011|
|Appare nelle tipologie:||1.1 Articolo in rivista|