Yrast three-quasiparticle K isomers in neutron-rich 181Hf -: art. no. 054307

New high-K orbitals have been identified in the neutron-rich Hf-181 nucleus via one-neutron transfer from a pulsed U-238 beam onto a stable Hf-180 target. Yrast three-quasiparticle high-K isomers, with half-lives as long as 1.5 ms, have been populated. The decay scheme of Hf-181 has been extended to (25/2(-)). Blocked BCS calculations, including residual interactions, compare well with the experimental results.