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Chin. Phys. B, 2014, Vol. 23(6): 063402    DOI: 10.1088/1674-1056/23/6/063402
ATOMIC AND MOLECULAR PHYSICS Prev   Next  

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
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.
Keywords:  second-order Born approximation      (e, 2e) collisions      magnesium      triple differential cross section  
Received:  24 September 2013      Revised:  10 December 2013      Accepted manuscript online: 
PACS:  34.80.Dp (Atomic excitation and ionization)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11174066).
Corresponding Authors:  Wang Yang     E-mail:  yangwang0624@foxmail.com

Cite this article: 

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 2014 Chin. Phys. B 23 063402

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