A significant feature in the total cross section for positron-helium scattering at the positronium formation threshold

被引：0

作者：

Van Reeth, P ^{[1
]}

Humberston, JW ^{[1
]}

机构：

[1] Univ London Univ Coll, Dept Phys & Astron, London WC1E 6BT, England

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1999年 / 32卷 / 05期

关键词：

D O I：

暂无

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Detailed theoretical investigations of e(+)-He scattering reveal a significant step-like rise in the total cross section at the positronium formation threshold. This feature arises from the threshold behaviour of the s-wave contribution to the positronium formation cross section and its magnitude and extent are such that it may be possible to detect it experimentally in the near future.

引用

页码：L103 / L106

页数：4

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