Benchmark cross sections for electron-impact total single ionization of helium

被引：15

作者：

Bray, Igor ^{[1
]}

Fursa, Dmitry V. ^{[1
]}

机构：

[1] Curtin Univ Technol, ARC Ctr Antimatter Matter Studies, Perth, WA 6845, Australia

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2011年 / 44卷 / 06期

基金：

澳大利亚研究理事会;

关键词：

HYDROGEN SCATTERING; COLLISIONS;

D O I：

10.1088/0953-4075/44/6/061001

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We establish the total single ionization cross section for electron-impact ionization of helium, to an accuracy of few per cent, from near threshold to 1 keV. This is done fully ab initio using the convergent close-coupling method without the often-used frozen-core approximation. We find excellent agreement with the most recent measurements of Rejoub et al (2002 Phys. Rev. A 65 042713) and Sorokin et al (2004 J. Phys. B: At. Mol. Opt. Phys. 37 3215), which are around 5% less than the previously used standard.

引用

页数：3

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