Effective pairing interaction for the Argonne nucleon-nucleon potential v18

The effective pairing interaction corresponding to the Argonne nucleon-nucleon potential v18 is found within the local potential approximation for several values of the boundary energy E0 that specifies the model subspace S0. A detailed comparison with the analogous effective interaction calculated previously for the Paris nucleon-nucleon potential is performed. It is shown that the effective interactions obtained for the two different nucleon-nucleon potentials at the same value of E0 are very close to each other. In the case of the Paris potential, a very wide subspace S' complementary to S0 was required in calculating the effective interaction (the corresponding cutoff momentum being kmax = 160-180 fm-1), whereas a much narrower subspace S' corresponding to kmax = 10-12 fm-1 could be used in the case of the Argonne potential