| Sm原子精细结构能级的理论分析 |
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| 作者姓名： | 刘忠新 马玉龙 周福阳 屈一至 |
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| 作者单位： | 中国科学院大学材料科学与光电技术学院, 北京 100049 |
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| 基金项目： | 国家自然科学基金（U1330117）资助 |
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| 摘 要： | 根据非相对论加相对论修正的原子能量表达式，结合实验能级拟合方法计算Sm原子的精细结构能级。对于基组态Xe]4f66s2的能级，通过对比不同拟合计算结果与实验值，得到各参量对能级的影响规律。对于奇宇称组态4f66s6p+4f55d6s2的能级，利用22条实验能级，得到134条已知能级较精确的拟合计算值。对于偶宇称组态4f66s2+4f65d6s+4f66s7s的能级，利用17条实验能级，得到65条已知能级较精确的计算值。最后，标识了5条高激发态偶宇称4f6（7F）6s7s5FJ（J=1~5）谱项能级。
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| 关 键 词： | Sm原子 精细结构能级 拟合计算方法 |
| 收稿时间： | 2016-04-14 |
| 修稿时间： | 2016-05-16 |
Theoretical analysis of energy levels for the fine structure of Sm I |
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| Authors: | LIU Zhongxin MA Yulong ZHOU Fuyang QU Yizhi |
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| Institution: | College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | In this work, the fine structure of Sm I was calculated with the experimental fitting method, which is based on the non-relativistic atomic energy expressions with the relativistic correction. For the ground configurationXe]4f66s2, the results of different fitting procedures are compared with the experimental data, and the effects of various parameters on the energy levels are analyzed. For odd parity configurations 4f66s6p+4f55d6s2, the 134 accurate known energy levels are obtained by using 22 fitted experimental energy levels. For even parity configurations 4f66s2+4f65d6s+4f66s7s, the 65 accurate known energy levels are obtained by using 17 fitted experimental data. Five high-lying levels are assigned to even-parity 4f6(7F)6s7s 5FJ(J=1-5). |
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| Keywords: | Sm I fine structure energy levels fitting method |
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