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Mass number scaling in ultra-relativistic nuclear collisions from a hydrodynamical approach

  • J. Sollfrank
  • P. Huovinen
  • P. V. Ruuskanen
Theoretical physics

Abstract

We study the different nucleus-nucleus collisions, O+Au, S+S, S+Ag, S+Au and Pb+Pb, at the CERN-SPS energy in a one-fluid hydrodynamical approach using a parametrization based on baryon stopping in terms of the thickness of colliding nuclei. Good agreement with measured particle spectra is achieved. We deduce the mass number scaling behaviour of the initial energy density. We find that the equilibration time is nearly independent of the size of the colliding nuclei.

Keywords

Mass Number Collision System Negative Particle Hydrodynamical Approach Rapidity Spectrum 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1999

Authors and Affiliations

  • J. Sollfrank
    • 1
  • P. Huovinen
    • 2
  • P. V. Ruuskanen
    • 2
  1. 1.Fakultät für PhysikUniversität BielefeldGermany
  2. 2.Department of PhysicsUniversity of JyväskyläFinland

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