A simple model for the microscopic effective pairing interaction
M. Baldo, U. Lombardo, E. Saperstein, M. Zverev
Abstract
The microscopic effective pairing interaction in the 1S0-channel is investigated for two different values of the chemical potential μ starting from the separable form of the Paris NN-potential. It is shown that, within a high accuracy, this effective interaction can be approximated by the off-shell free T-matrix taken at the negative energy E=2μ.
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