Multipole mixtures for (2γ+-2g+) transitions in nonspherical nuclei with N = 90-110

The multipole mixture σ-sings for (2γ+-2g+) transitions of nuclei with neutron number N = 90-110 are considered. It is found that the correlations of the σ-sings (σ < 0) for (2γ+-2g+) and (4γ+-4g+) transitions and also the anti-correlations of the σ-sings for (2γ+-2g+) and (2β+-2g+) transitions are observed in majority of cases. There are exclusions from these rules due to inter-cation between β- and γ-vibrational excitations, when they approach each other in energy, and as well due to the contribution given by the two-proton configuration of proton Nilsson orbits in the 2γ+-level