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

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arxiv nucl-th/9801068 v1 pith:C25WOJH7 submitted 1998-01-30 nucl-th

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

classification nucl-th
keywords entropybaryoncollisionsenergiesmodelparticipatingproductionsmoothly
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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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