Chapter

Hot and Dense Nuclear Matter

Volume 335 of the series NATO ASI Series pp 11-22

The Hydrodynamic Model for High-Energy Heavy Ion Reactions

  • Y. PürsünAffiliated withInstitut für Theoretische Physik, J.W. Goethe-Universität
  • , U. KatscherAffiliated withInstitut für Theoretische Physik, J.W. Goethe-Universität
  • , A. von KeitzAffiliated withInstitut für Theoretische Physik, J.W. Goethe-Universität
  • , D. H. RischkeAffiliated withInstitut für Theoretische Physik, J.W. Goethe-Universität
  • , B. WaldhauserAffiliated withInstitut für Theoretische Physik, J.W. Goethe-Universität
  • , J. A. MaruhnAffiliated withInstitut für Theoretische Physik, J.W. Goethe-Universität
  • , W. GreinerAffiliated withInstitut für Theoretische Physik, J.W. Goethe-Universität

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Abstract

Hydrodynamic models1−3 have the great advantage of allowing for a simple relativistic formulation and explicit use of the equation of state of excited hadronic matter. On the other hand, when applying one-fluid hydrodynamics to heavy ion collisions, one assumes local thermodynamic equilibrium, which is probably not a good approximation at high bombarding energies. Nevertheless, at relatively low bombarding energies the hydrodynamic model has been successfully used to describe heavy ion collisions4−6 and even at CERN energies it seems not to contradict experimental data7. Note that also the Landau model8 and related models9−12 are successfully applied to describe certain observables of multiparticle production in hadron-hadron, hadron-nucleus and nucleus-nucleus collisions.