The calculation of photoionization angular distribution parameter β of atomic Na

The differential cross sections and angular distribution parameter of the photoionization processes 2p63s→ 2p53skl of atomic Na have been calculated by using many-body perturbation theory. In the calculation, the resonant structure of the excitation process 2s→3p has been included. The electron corr...

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Bibliographic Details
Published in:Science China. Mathematics 1999-10, Vol.42 (10), p.1081-1088
Main Authors: Liu, Jinchao, Pu Fengnian, Liu Hankui, Guo Jianjun, Cheng Yansong, Yang, Xiangdong
Format: Article
Language:English
Subjects:
Angular distribution
Mathematical analysis
Perturbation theory
Photoionization
Process parameters
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Summary:The differential cross sections and angular distribution parameter of the photoionization processes 2p63s→ 2p53skl of atomic Na have been calculated by using many-body perturbation theory. In the calculation, the resonant structure of the excitation process 2s→3p has been included. The electron correlation interaction was analyzed by using the effective diagram method. The summation of specific classes of these diagrams is to an infinite order. The results of calculations are compared with experimental data, which are in good agreement with the experiment.
ISSN:1674-7283
1869-1862
DOI:10.1007/BF02889510