Triple differential cross section in ionization of hydrogen by electron impact
Zhang Cheng-Hua (张程华)a, Qiu Wei (邱巍)a, Xin Jun-Li (辛俊丽)a, Niu Ying-Yu (牛英煜)a, Wang Xiao-Wei (王晓伟)b, Wang Jing-Yang (王京阳)b
a Department of Physics, Laboratory of Atoms and Radiation, Liaoning University, Shenyang 110036, China; b Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
Abstract A novel model is proposed to study the ionization of atomic hydrogen by fast election impact in coplanar asymmetric geometry making use of the post form of the transition matrix element for the energy shell and the two-potential formula. Based on the approximation of projectile plane waves and three-body problems, the transition matrix element is decomposed into two parts: the structure and scattering factor and the correlation factor. The contributions of these factors to triple differential cross sections are investigated using the method of asymptotic and convergent series.
Received: 18 March 2003
Revised: 30 June 2003
Accepted manuscript online:
PACS:
34.80.Dp
(Atomic excitation and ionization)
Cite this article:
Zhang Cheng-Hua (张程华), Qiu Wei (邱巍), Xin Jun-Li (辛俊丽), Niu Ying-Yu (牛英煜), Wang Xiao-Wei (王晓伟), Wang Jing-Yang (王京阳) Triple differential cross section in ionization of hydrogen by electron impact 2003 Chinese Physics 12 1395
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