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# Study of the transverse mass spectra of strange particles in Pb-Pb collisions at 158 A GeV/c

Abstract : The Na57 experiment has collected high statistics, high purity samples of K$^0_s$ 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.
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Journal articles
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http://hal.in2p3.fr/in2p3-00021647
Contributor : Yvette Heyd Connect in order to contact the contributor
Submitted on : Thursday, April 15, 2004 - 8:25:26 AM
Last modification on : Thursday, April 23, 2020 - 2:26:20 PM

### Identifiers

• HAL Id : in2p3-00021647, version 1

### Citation

F. Antinori, P. Bacon, A. Badala, R. Barbera, A. Belogianni, et al.. Study of the transverse mass spectra of strange particles in Pb-Pb collisions at 158 A GeV/c. Journal of Physics G: Nuclear and Particle Physics, IOP Publishing, 2004, 30, pp.823-840. ⟨in2p3-00021647⟩

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