P-N interaction and masses of nuclei with Z>N

An analysis of discrepancies between mass values M(Z,N) of nuclei with Z>N calculated in different approaches in the case of nuclei whose masses are known from an experiment and in the case nuclei far from the line β-stability makes possible an separate the group of approaches best suited to predict M(Z,N) values. The use of these approaches significantly reduces the mass values scatter of nuclei with Z>N. 18 refs