| Properties of the β-delayed proton decay of 146Ho |
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| 作者姓名： | 马飞 周小红 郑勇 徐树威 谢元祥 陈亮 雷祥国 郭应祥 张玉虎 李占奎 郭松 丁兵 周厚兵 李广顺 王海霞 |
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| 作者单位： | Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Graduate University of the Chinese Academy of Sciences, Beijing 100049, China |
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| 基金项目： | Supported by National Natural Science Foundation of China （10825522）, National Basic Research Program of China （2007CB815001） and Chinese Academy of Sciences |
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| 摘 要： | The proton-rich isotope 146Ho was produced via the fusion-evaporation reaction ^92Mo （^58Ni, 3p1n）. The β-delayed proton decay of 146Ho was studied by proton-γ coincidence measurements using a He-jet tape transport system. The γ-transitions in ^145Tb following the proton emissions were observed, and the β-delayed proton branching ratios to the final states in the grand-daughter nucleus ^145Tb were determined. According to the relative branching ratios, the ground-state spin of 146Ho has been proposed and the possible configuration discussed.
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| 关 键 词： | 质子衰变 延迟 性质 熔合蒸发反应 带传输系统 符合测量 基态自旋 同位素 |
| 收稿时间： | 2009-11-17 |
| 修稿时间： | 2009-12-17 |
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