High-spin states have been populated in the nucleus ${}_{}{}^{149}{}_{}{}^{}\mathrm{Dy}$ using the ${}_{}{}^{122}{}_{}{}^{}\mathrm{Sn}$${(}^{32}$S, 5n${)}^{149}$Dy reaction at a beam energy of 163 MeV. The experimental level scheme has been extended to a spin of 61/2ħ, corresponding to an energy of about 12 MeV, and is adequately explained in the context of the shell model. Most of the levels are characterized by maximally aligned single-particle states with no evidence of collectivity. An alternate shell-model approach has been adopted to assign shell-model configurations. © 1996 The American Physical Society.

• Received 12 February 1996

DOI:https://doi.org/10.1103/PhysRevC.54.1610