Consequences of Kinetic Nonequilibrium for the Nuclear Equation-of-state in Heavy Ion Collisions

  • Christian Fuchs


The equation of state (EOS) in ground state nuclear matter is discussed in terms of relativistic many-body theory. At supra-normal densities the EOS can only be tested in heavy ion collisions. However, highly compressed nuclear matter created in relativistic heavy collisions is to large extent governed by local non-equilibrium. We discuss the influence of such kinetic non-equilibrium on the corresponding EOS. As an idealized scenario for typical situation which occur in heavy ion reactions colliding nuclear matter configurations are studied. An effective EOS constructed for anisotropic momentum configurations shows a significant net softening compared to ground state nuclear matter.


Nuclear Matter Fermi Sphere Streaming Velocity High Density Phase Walecka Model 
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  • Christian Fuchs

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