Ground-state deformations, binding energies, and potential energy surfaces have been calculated for even-even dysprosium isotopes between ${}^{160}\mathrm{Dy}$ and ${}^{180}\mathrm{Dy}$ in the framework of density-dependent Hartree-Fock calculations with BCS pairing correlations. Further deformed Hartree-Fock with angular-momentum projection and band-mixing calculations explore the yrast spectra of the nuclides approaching the neutron midshell. Predictions of high-$K$ states in the doubly midshell nucleus ${}_{66}{}^{170}{\mathrm{Dy}}_{104}$ are made.

• Received 27 June 2003

DOI:https://doi.org/10.1103/PhysRevC.68.044315