Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
2003-05-29
Physics
Nuclear Physics
Nuclear Experiment
8 pages, 3 figures, contribution to the proceedings of The XXXVIIIth Rencontres de Moriond "QCD and High Energy Hadronic Inter
Scientific paper
10.1088/0954-3899/30/8/010
We report results from the experiment NA57 at CERN SPS on hyperon production at midrapidity in Pb-Pb collisions at 158 $A$ GeV/$c$ and 40 $A$ GeV/$c$. $\Lambda$, $\Xi$ and $\Omega$ yields are compared with those from the STAR experiment at the higher energy of the BNL RHIC. $\Lambda$, $\Xi$, $\Omega$\ and preliminary $K_S^0$ transverse mass spectra are presented and interpreted within the framework of a hydro-dynamical blast wave model.
Bruno Giuseppe Eugenio
for the NA57 Collaboration
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