Masses of deformed nuclei with Z > N

Masses of nuclei with Z > N are calculated employing the Garvey-Kelson equation for mirror nuclei. Mass differences of isobaric nuclei with T = 1/2 in the equation are expressed in terms of Coulomb energy displacement (ΔEc). ΔEc calculations are made by application of a shell-model expression for diagonal nuclei which takes into consideration the quadrupole deformation (β2) of nuclei. Two alternative sets of β2 values are used. In one case the expression given by Janecke is applied whose parameters are established experimentally. In the second one β2 values are considered which were deduced in the frame of macroscopic-microscopic model as a result of optimization of nuclear mass values. Both assumptions as to β2 values bring to similar conclusions with respect to little influence of deformation in the region of nuclei with Z = 9-35 and 51-56 and to a noticeable reduction of nuclear masses are compared to those of spherical nuclei in the regions with Z = 36-50 and 57-70