Abstract
The problem of the very different E2 decay rates from the two-quasineutron Kπ = 6+ isomers in the N = 104 isotones 172Er, 174Yb, 176Hf, and 178W is investigated using the triaxial projected shell model with inclusion of multi-quasiparticle configurations. It is demonstrated that the highly K-forbidden transition from the 6+ isomer to the ground-state band is sensitive to mixing with the 6+ state of the γ-vibrational band. Thus the inter-band transitions, and lifetimes, depend on the relative position of the γ-band and the isomeric state in each isotone.
Original language | English |
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Article number | 015101 |
Journal | Journal of Physics G: Nuclear and Particle Physics |
Volume | 40 |
Issue number | 1 |
DOIs | |
Publication status | Published - Jan 2013 |