Wave vector matching in charge exchange collisions involving positrons

被引：5

作者：

Charlton, M. ^{[1
]}

机构：

[1] Univ Coll Swansea, Dept Phys, Swansea SA2 8PP, W Glam, Wales

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2006年 / 39卷 / 22期

关键词：

D O I：

10.1088/0953-4075/39/22/002

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a simple model based upon wave vector matching which gives a plausible explanation for the empirical observation that, for positron collisions with a wide variety of targets, cross sections for positronium formation are largest when the projectile kinetic energy is in the vicinity of twice the relevant threshold energy. The model is used to make predictions of cross-section trends for charge exchange processes for collisions involving a number of other positronic species.

引用

页码：4575 / 4580

页数：6

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