Indistinguishability in electron-impact excitation-ionization of helium

被引：9

作者：

Harris, A. L. ^{[1
]}

Milum, B. ^{[1
]}

Madison, D. H. ^{[2
]}

机构：

[1] Henderson State Univ, Dept Phys, Arkadelphia, AR 71999 USA

[2] Missouri Univ Sci & Technol, Dept Phys, Rolla, MO 65409 USA

来源：

PHYSICAL REVIEW A | 2011年 / 84卷 / 05期

基金：

美国国家科学基金会;

关键词：

Helium - Electric excitation;

D O I：

10.1103/PhysRevA.84.052718

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present fully differential cross section (FDCS) calculations for electron-impact excitation-ionization of helium using the four-body distorted wave-exchange (4DWE) model. This model includes both the direct and exchange amplitudes, which account for the indistinguishability of the free electrons in the final state. The results of the 4DWE model are compared with absolute experimental results, and we find that the exchange amplitude has a minimal impact in determining the shape and magnitude of the FDCS.

引用

页数：4

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