Second-order Born calculation of coplanar symmetric (e, 2e) process on Mg

doi:10.1088/1674-1056/23/6/063402

中国物理B ›› 2014, Vol. 23 ›› Issue (6): 63402-063402.doi: 10.1088/1674-1056/23/6/063402

• ATOMIC AND MOLECULAR PHYSICS • 上一篇下一篇

Second-order Born calculation of coplanar symmetric (e, 2e) process on Mg

张永志^a, 王旸^b, 周雅君^b

a Academy of Physical Science and Technology, Heilongjiang University, Harbin 150080, China;
b Center for Theoretical Atomic and Molecular Physics, Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology, Harbin 150080, China

收稿日期:2013-09-24 修回日期:2013-12-10 出版日期:2014-06-15 发布日期:2014-06-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 11174066).

Second-order Born calculation of coplanar symmetric (e, 2e) process on Mg

Zhang Yong-Zhi (张永志)^a, Wang Yang (王旸)^b, Zhou Ya-Jun (周雅君)^b

a Academy of Physical Science and Technology, Heilongjiang University, Harbin 150080, China;
b Center for Theoretical Atomic and Molecular Physics, Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology, Harbin 150080, China

Received:2013-09-24 Revised:2013-12-10 Online:2014-06-15 Published:2014-06-15
Contact: Wang Yang E-mail:yangwang0624@foxmail.com
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 11174066).

摘要/Abstract

摘要： The second-order distorted wave Born approximation (DWBA) method is employed to investigate the triple differential cross sections (TDCS) of coplanar doubly symmetric (e, 2e) collisions for magnesium at excess energies of 6 eV-20 eV. Comparing with the standard first-order DWBA calculations, the inclusion of the second-order Born term in the scattering amplitude improves the degree of agreement with experiments, especially for backward scattering region of TDCS. This indicates that the present second-order Born term is capable to give a reasonable correction to DWBA model in studying coplanar symmetric (e, 2e) problems of two-valence-electron target in low energy range.

关键词: second-order Born approximation, (e, 2e) collisions, magnesium, triple differential cross section

Abstract: The second-order distorted wave Born approximation (DWBA) method is employed to investigate the triple differential cross sections (TDCS) of coplanar doubly symmetric (e, 2e) collisions for magnesium at excess energies of 6 eV-20 eV. Comparing with the standard first-order DWBA calculations, the inclusion of the second-order Born term in the scattering amplitude improves the degree of agreement with experiments, especially for backward scattering region of TDCS. This indicates that the present second-order Born term is capable to give a reasonable correction to DWBA model in studying coplanar symmetric (e, 2e) problems of two-valence-electron target in low energy range.

Key words: second-order Born approximation, (e, 2e) collisions, magnesium, triple differential cross section

中图分类号: (Atomic excitation and ionization)

34.80.Dp

张永志, 王旸, 周雅君. Second-order Born calculation of coplanar symmetric (e, 2e) process on Mg[J]. 中国物理B, 2014, 23(6): 63402-063402.

Zhang Yong-Zhi (张永志), Wang Yang (王旸), Zhou Ya-Jun (周雅君). Second-order Born calculation of coplanar symmetric (e, 2e) process on Mg[J]. Chin. Phys. B, 2014, 23(6): 63402-063402.

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Second-order Born calculation of coplanar symmetric (e, 2e) process on Mg

Second-order Born calculation of coplanar symmetric (e, 2e) process on Mg

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