Semiclassical and quantum production rates

Details Semiclassical and quantum production rates Semiclassical and quantum production rates

1999-10-07

arxiv.org/abs/nucl-th/9910022v1

Physics

Nuclear Physics

Nuclear Theory

Talk given at the International Workshop "Kadanoff-Baym Equations - Progress and Perspectives for Many-Body Physics", Rostock,

Scientific paper

We discuss the effects of the off-shell nucleon propagation for the particle production. Results from nonequilibrium Kadanoff-Baym evolution modeling a heavy ion collision are presented. The production rates are compared to equilibrium emission rates obtained in the same approximation for the self-energy. The comparison of semiclassical and quantum in-medium production rates is performed within the T-matrix approximation. Self-consistent T-matrix resummation allows us to discuss also the effect of the off-shell propagation on the effective in-medium cross section.

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