Ionization in positronium collisions with noble gases

被引：5

作者：

Starrett, C. ^{[1
]}

Walters, H. R. J. ^{[1
]}

机构：

[1] Queens Univ Belfast, Dept Appl Math & Theoret Phys, Belfast BT7 1NN, Antrim, North Ireland

来源：

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA | 2007年 / 161卷 / 1-3期

关键词：

positronium; positron; electron; ionization; noble gases; differential cross-sections; impulse approximation; first born approximation;

D O I：

10.1016/j.elspec.2007.02.024

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Calculations are reported for ionizing collisions of Ps(1s) with He and Xe with emphasis on processes in which the target atom is excited/ionized. The results include total ionization cross-sections, single differential cross-sections in the longitudinal energy of the ejected particle (positron or electron) and double differential cross-sections in the angle and energy of the ejected particle. Good agreement is found with the available experiments on He but only partial agreement with some preliminary measurements of the total ionization cross-section in Xe. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：194 / 198

页数：5

共 8 条

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