Mixing effects on K-forbidden transition rates from the 6+ isomers in the N = 104 isotones

Fang Qi Chen, Yang Sun, P. M. Walker, G. D. Dracoulis, Y. R. Shimizu, J. A. Sheikh

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13 Citations (Scopus)


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 languageEnglish
Article number015101
JournalJournal of Physics G: Nuclear and Particle Physics
Issue number1
Publication statusPublished - Jan 2013

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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