Searching for high-K isomers in the proton-rich A~80 mass region

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Zhi-Jun Bai, Chang-Feng Jiao, Yuan Gao and Fu-Rong Xu. Searching for high-K isomers in the proton-rich A~80 mass region[J]. Chinese Physics C, 2016, 40(9): 094102. doi: 10.1088/1674-1137/40/9/094102
Zhi-Jun Bai, Chang-Feng Jiao, Yuan Gao and Fu-Rong Xu. Searching for high-K isomers in the proton-rich A~80 mass region[J]. Chinese Physics C, 2016, 40(9): 094102.  doi: 10.1088/1674-1137/40/9/094102 shu
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Received: 2016-03-24
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    Supported by National Key Basic Research Program of China (2013CB834402) and National Natural Science Foundation of China (11235001, 11320101004 and 11575007)

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Searching for high-K isomers in the proton-rich A~80 mass region

    Corresponding author: Fu-Rong Xu,
Fund Project:  Supported by National Key Basic Research Program of China (2013CB834402) and National Natural Science Foundation of China (11235001, 11320101004 and 11575007)

Abstract: Configuration-constrained potential-energy-surface calculations have been performed to investigate the K isomerism in the proton-rich A~80 mass region. An abundance of high-K states are predicted. These high-K states arise from two and four-quasi-particle excitations, with Kπ=8+ and Kπ=16+, respectively. Their excitation energies are comparatively low, making them good candidates for long-lived isomers. Since most nuclei under study 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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