Elsevier

Physics Letters B

Volume 242, Issue 1, 31 May 1990, Pages 111-114
Physics Letters B

Strangeness production in heavy ion collisions at finite baryon number density

https://doi.org/10.1016/0370-2693(90)91604-AGet rights and content

Abstract

We study the K++ and K production rates in heavy ion collisions, using a hadron gas model which includes baryon repulsion and intermediate resonances, taking strangeness conservation into account. In such a description, the state of the system is specified by its temperature T and its baryon number density nB. Fixing the K++ and K rates then determines the freeze-out values of T and nB. The production rates recently measured in silicon-gold collisions at the Brookhaven AGS energies are shown to give 93 ⩽ T ⩽ 112 MeV and 0.02 ⩽ nB ⩽ 0.12 baryons/fm3.

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