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运用多体微扰理论方法 ,对开壳层钠原子的内壳层电子的光电离过程2p63s→ 2p5 3skl中分波散射截面和角分布参数进行了计算 .在计算中包括了 2s→ 3p的共振结构 .同时利用多体微扰理论的图式 ,对主要的电子关联相互作用进行了分析 ,并对RPA和BO关联的主要贡献项计算达到了无穷级近似 .计算结果与实验吻合较好 .
The multi-body perturbation theory is used to calculate the cross-sectional scattering cross sections and angular distribution parameters of 2p63s → 2p5 3skl in the photoionization process of the shell-shell sodium atoms in the open-shell sodium atom. The calculation includes the 2s → 3p resonance Structure.The main electronic interaction is analyzed by the scheme of multi-body perturbation theory, and the main contributions of RPA and BO are calculated to reach an infinite-order approximation.The calculated results are in good agreement with the experiment.