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arXiv · 1603.07470

Searching for high-$K$ isomers in the proton-rich $A\sim80$ mass region

Z. J. Bai·C. F. Jiao·Y. Gao·F. R. Xu
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Abstract

Configuration-constrained potential-energy-surface calculations have been performed to investigate the $K$ isomerism in the proton-rich $A\sim80$ mass region. An abundance of high-$K$ states are predicted. These high-$K$ states arise from two and four-quasi-particle excitations, with $K^π=8^{+}$ and $K^π=16^{+}$, respectively. Their excitation energies are comparatively low, making them good candidates for long-lived isomers. Since most nuclei under studies are prolate spheroids in their ground states, the oblate shapes of the predicted high-$K$ states may indicate a combination of $K$ isomerism and shape isomerism.

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Z. J. Bai, C. F. Jiao, Y. Gao, F. R. Xu. 2016-03-24. Searching for high-$K$ isomers in the proton-rich $A\sim80$ mass region. https://doi.org/10.1088/1674-1137%2F40%2F9%2F094102

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