TY - JOUR
T1 - Mixing effects on K-forbidden transition rates from the 6+ isomers in the N = 104 isotones
AU - Chen, Fang Qi
AU - Sun, Yang
AU - Walker, P. M.
AU - Dracoulis, G. D.
AU - Shimizu, Y. R.
AU - Sheikh, J. A.
PY - 2013/1
Y1 - 2013/1
N2 - 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.
AB - 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.
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U2 - 10.1088/0954-3899/40/1/015101
DO - 10.1088/0954-3899/40/1/015101
M3 - Article
AN - SCOPUS:84871532089
VL - 40
JO - Journal of Physics G: Nuclear and Particle Physics
JF - Journal of Physics G: Nuclear and Particle Physics
SN - 0954-3899
IS - 1
M1 - 015101
ER -