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Excitation function of entropy and pion production from AGS to SPS energies

M. Reiter·A. Dumitru·J. Brachmann·J. A. Maruhn·H. Stöcker·W. Greiner
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Abstract

Entropy production in the initial compression stage of relativistic heavy-ion collisions from AGS to SPS energies is calculated within a three-fluid hydrodynamical model. The entropy per participating net baryon is found to increase smoothly and does not exhibit a jump or a plateau as in the 1-dimensional one-fluid shock model. Therefore, the excess of pions per participating net baryon in nucleus-nucleus collisions as compared to proton-proton reactions also increases smoothly with beam energy.

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M. Reiter, A. Dumitru, J. Brachmann, J. A. Maruhn, H. Stöcker, W. Greiner. 1998-01-30. Excitation function of entropy and pion production from AGS to SPS energies. https://arxiv.org/abs/nucl-th/9801068

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