Energy dependence of the thermodynamical parameters in nucleus-nucleus collisions from 1A to 200A GeV

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Abstract

The energy dependence of the thermodynamical parameters in nucleus-nucleus collisions are studied from 1A to 200A GeV in the framework of the statistical thermal model. The energy and entropy densities, as well as the pressure, of hot and dense hadronic matter are calculated by using the available input parameters of the model. No discontinuity or steep rise in the thermodynamical parameters has been found. The equation of state in terms of the speed of sound is investigated as a function of the energy density, and it increases monotonically up to 200A GeV. The estimated sonic velocities above 10A GeV are very close to that of an ideal ultrarelativistic hadron gas in the presence of resonances.

Original languageEnglish
JournalJournal of the Korean Physical Society
Volume35
Issue number5
Publication statusPublished - 1999 Dec 1

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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