DETERMINATION OF THE NUCLEAR-MATTER EQUATION OF STATE IN HEAVY-ION COLLISIONS

The nuclear matter equation-of-state (EOS) cannot be determined direct ly in heavy ion collisions, since such processes involve essential non -equilibrium effects. The exact solution of this problem is reviewed b ut has not yet been solved. We discuss a local phase space configurati on approximation (LCA), in which the mean field and the cross sections of relativistic kinetic equations are determined locally for the mode l configuration of colliding nuclear matter which we determine with re pect to Dirac-Brueckner calculations. Sample results show (1) that non -equilibrium effects are important in determinig the EOS, and (2) that realistic DB fields in this approach reasonably describe the data.