Microscopic Calculation of in-Medium Nucleon-Nucleon Cross Ssections

Abstract

We derive in-medium nucleon-nucleon (NN) cross sections in a microscopic model. Our calculations are based upon the Bonn NN potential and the Dirac-Brueckner approach for nuclear matter. We consider energies up to 300 MeV (in the laboratory frame) and densities up to twice nuclear matter density. Our results deviate substantially from cross section parametrizations that are commonly used in the nuclear medium.

22 pages text (REVTEX) and 12 figures (paper, available upon request) UI-NTH-9305

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