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The European Physical Journal C
ISSN: 1434-6044 (printed version)
ISSN: 1434-6052 (electronic version)
Abstract Volume 1 Issue 1/2 (1998) pp 355-361
theoretical physics:
Strange particles freeze-out conditions from a new hadronic equation of state
C.P. Singh, V.K. Tiwari
Department of Physics, Banaras Hindu University, Varanasi-221 005, India
Received: 22 February 1996 / Revised version: 17 February 1997
Abstract. We propose a thermodynamically consistent equation of state (EOS) for a hot and dense handron gas (HG) incorporating the hard-core finite-size correction for baryons which result in a Van-der Waals excluded volume effect. We develop a complete description within a thermal hadron gas model to determine the production of strange particles in relativistic nucleus-nucleus collisions and calculate the strange particle ratios as function of baryon chemical potential $\mu_{B}$ and temperature $T$. The results are compared with other existing thermodynamically consistent EOS. Furthermore we extract the thermal freeze-out parameters for different strange particles using the latest data obtained by the CERN experiments.
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Online publication: December 11, 1997
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