The contribution of the central region of the electron energy spectrum to the total double photoionization cross section of helium in the asymptotic nonrelativistic energy region

被引：0
作者：
A. I. Mikhailov
I. A. Mikhailov
机构：
[1] Russian Academy of Sciences,Institute of Nuclear Physics
来源：
Journal of Experimental and Theoretical Physics | 2004年 / 98卷
关键词：
Central Region; Energy Spectrum; Single Ionization; Ionization Cross Section; Total Process;
D O I：
暂无
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学科分类号：
摘要：
The double photoionization of helium at high photon energies is considered using a nonrelativistic approach. The central region of the energy spectrum and its contribution to the total process cross section and to the ratio between the double and single ionization cross sections are studied. Interelectronic interaction in the initial state is included exactly, whereas the interaction between the fast outgoing electrons is calculated by perturbation theory. A detailed derivation of the expression for the cross section ratio between double and single ionizations is given. The corresponding results obtained by other authors are analyzed and corrected.
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页码：248 / 253
页数：5
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