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Analysis of flow effects in relativistic heavy-ion collisions within the CBUU approach

  • A. Hombach
  • W. Cassing
  • S. Teis
  • U. Mosel
Heavy ion physics

Abstract:

We study flow phenomena in relativistic heavy-ion collisions, both in transverse and radial direction, in comparison to experimental data. The collective dynamics of the nucleus-nucleus collision is described within a transport model of the coupled channel BUU type (CBUU). This recently developed version includes all nucleonic resonances up to 1.95 GeV in mass and mean-field potentials both of the Skyrme and momentum dependent MDYI type. We find that heavy resonances play an important role in the description of transverse flow above 1 AGeV incident energy. For radial flow we analyse reaction times and equilibration and extract the parameters T and β for temperature and collective flow velocity within different prescriptions. Furthermore, we apply a coalescence model for fragment production and check the mass dependence of the flow signals.

PACS: 25.75.-q Relativistic heavy-ion collisions 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1999

Authors and Affiliations

  • A. Hombach
    • 1
  • W. Cassing
    • 1
  • S. Teis
    • 1
  • U. Mosel
    • 1
  1. 1.Institut für Theoretische Physik, Universität Giessen, D-35392 Giessen, GermanyDE

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