LOW-TEMPERATURE TRANSPORT-COEFFICIENTS OF NUCLEAR-MATTER WITH IN-MEDIUM MODIFICATIONS

Transport coefficients of dense symmetrical nuclear matter in the low- temperature regime are calculated taking into account the modification s of the quasi-particle scattering amplitudes in the nuclear environme nt. The two-body scattering T-matrix, the in-medium nucleon-nucleon cr oss section, and the critical temperature for the superfluid phase tra nsition for the different partial wave channels are evaluated using a separable form of the nucleon-nucleon interaction. As a precursor effe ct of the onset of superfluid phase, the transport coefficients show n on-trivial reduction with the decreasing temperature. The in-medium tr ansport coefficients are found to be considerably modified compared wi th the results obtained with either the free scattering cross section or the isotropic residual value sigma similar to 40 mb.