Strongly coupled bands in the neutron-deficient nucleus <sup>167</sup>Re
Joss DT., Simpson J., Paul ES., Page RD., Amzal N., Appelbe DE., Bäck T., Cederwall B., Cocks JFC., Cullen DM., Greenlees PT., Helariutta K., Jones PM., Julin R., Juutinen S., Kankaanpää H., Keenan A., Kettunen H., King SL., Kuusiniemi P., Leino M., Muikku M., Savelius A., Uusitalo J.
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.