The structure of low-lying states in heavy odd-mass N=82 isotones (147≤A≤153) is investigated in terms of a number-projected one- and three-quasiparticle Tamm-Dancoff approximation. A surface-delta interaction is taken as the residual nucleon-nucleon interaction. Excitation energies, spin, and parity are calculated and compared with the experimental data. Some predictions about dipole and quadrupole moments are presented.

• Received 6 December 1991

DOI:https://doi.org/10.1103/PhysRevC.46.2289