A search for sequences of identical transition energies at normal deformations in odd-A nuclei relative to the average even-even neighbors in the mass A=130 region has been carried out. Four such sequences in odd-N nuclei and one in odd-Z nuclei have been found. It is suggested that the identity in the moments of inertia in these bands may be the result of a precise cancellation between the reduction in pairing, and the reduction in quadrupole deformation, caused by the odd particle.

• Received 23 March 1992

DOI:https://doi.org/10.1103/PhysRevC.46.R39