“…Results were calculated using the HFB method with SLy4 parameterization and listed in Table 1. One can see different equilibrium distributions around β 2 =0 with two minima for 88,90,92 Kr, 90,92,94 Sr, and 98 Mo, but these two minima are arranged symmetric about β 2 =0, then the breaking symmetry for β 2 ≠ 0 removed in a symmetry point [13] and the nuclei will as a spherical shape with weakly bound structure. For 92,94,96 Zr and 94,96 Mo have a spherical shape.…”