He，Ne，Ar，Kr和Xe原子电子的动量密度分布研究  

Electron momentum density distribution for He, Ne, Ar, Kr and Xe

作　　者：牟致栋[1] 魏琦瑛[1] 丁凯[1] 叶世旺[1] 

机构地区：[1]中国矿业大学理学院.徐州221008

出　　处：《原子与分子物理学报》2010年第1期19-27,共9页Journal of Atomic and Molecular Physics

基　　金：中国矿业大学科技基金(0K4522)

摘　　要：对He,Ne,Ar,Kr和Xe原子体系中电子在动量空间的性质进行了系统的理论计算研究.采用自洽场HFR方法计算了坐标空间He,Ne,Kr和Xe原子体系单电子径向波函数,动量空间的单电子波函数由坐标空间原子体系单电子径向波函数通过运用傅立叶变换计算得到.在冲量近似条件下,进一步计算研究了这些原子的单电子动量密度分布和原子体系总的Compton轮廓.计算结果与已有的实验实验值和其他文献的理论计算结果比较表明,本文计算的结果是准确的.The properties of momentum distribution in neutral atom He, Ne, Ar, Kr and Xe are studied in this paper under the condition of impulse approximation. In particular, we have calculated the singleelectron momentum density distribution of all sub-shell electrons and the Compton profile for groundconfigurations 1s2, 1s2 2s2 2p6, 1s2 2s2 2p6 3s2 3p6, 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6, 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 of He, Ne,Ar, Kr and Xe, respectively. The single-electron radial wave functions in coordinate space are obtained from Hartree-Foek with relativistic Corrections （HFR） method. And, the associated momentum space wave functions are calculated by applying appropriate Fourier transformation. The results of Compton profile computed in this paper are in excellent agreement with the experimental or theoretical values available in the literature. It is expected that this study are helpful for interpreting the experimental cross-sections for above atom colliding with other excited ions.

关 键 词：HE NE AR Kr和Xe原子 动量空间 动量密度 Compton轮廓 

分 类 号：O562.2[理学—原子与分子物理]