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Excited states in the neutron-deficient nucleus 167Re have been observed in a recoil-tagging experiment performed with the Jurosphere γ-ray spectrometer in conjunction with the RITU gas-filled recoil separator. The low-spin yrast band, based on a proton h11/2 orbital, comprises a strongly coupled band and exhibits significant signature splitting, indicative of a triaxial shape with γ<0°. At higher spin the rotational alignment of a pair of i13/2 neutrons induces a transition to an axial prolate shape resulting in a drastic reduction of the signature splitting. Two other strongly coupled bands have been established and their structures are discussed in terms of quasiparticle configurations.

Type

Journal article

Journal

Physical review c - nuclear physics

Publication Date

01/07/2003

Volume

68

Pages

143031 - 143036