| Alpha-decay branching ratios to high-lying excited-states of the ^242Cm → ^238Pu → ^234U → ^230Th → ^226Rn decay chain |
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| 引用本文： | 张进娟,许昌,任中洲.Alpha-decay branching ratios to high-lying excited-states of the ^242Cm → ^238Pu → ^234U → ^230Th → ^226Rn decay chain[J].中国物理 C,2009,33(9):764-768. |
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| 作者姓名： | 张进娟 许昌 任中洲 |
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| 作者单位： | 1 Department of Physics, Nanjing University, Nanjing 210008, China;2 Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000, China |
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| 基金项目： | Supported by National Natural Science Foundation of China （]0535010, 10805026, 10775068, 10735010）, Major State Basic Research Development Program （2007CB815004）, and Doctoral Fund of Ministry of Education of China （20070284016） |
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| 摘 要： | We present a systematic calculation on the α-decay branching ratios to excited-states of an even-even α-decay chain ^242Cm → ^238Pu → ^234U → ^230Th → ^226Rn by the improved barrier penetration approach. The changes of the parities between the parent nuclei and the daughter nuclei are properly taken into account. The theoretical values are compared with the available experimental data and the deviation between them is within a factor of 5 in most cases.
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| 关 键 词： | 衰变分支比 衰变链 激发态 高海拔 系统计算 实验数据 理论值 偶数 |
| 收稿时间： | 2008-12-22 |
| 修稿时间： | 2009-2-19 |
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