Normal and anomalous K-hindered decays from four-quasiparticle isomers in 176Lu

Abstract

Two four-quasiparticle isomers, with Kπ = 12+ and (14+) and mean lives of 450(100) ns and 58(5) μs, have been identified in 176Lu, at excitation energies of 1515 and 1588 keV, respectively. The 12+ isomer exhibits a large number of K-forbidden decay bra