Configuration dependence ofK-forbidden transition rates from three-quasiparticle isomers

Abstract

Reduced hindrance factors for $K$-forbidden $E2$ transitions from two- and three-quasiparticle isomers in the $A\ensuremath{\approx}180$ deformed region are compared. Evidence is presented that when all three quasiparticles are of the same nucleon type (proton or neutron) there is a strong dependence of the $E2$ reduced hindrance factor on the isomer excitation energy.