The effect of forward-angle scattering on positronium-gas total cross sections

被引：47

作者：

Garner, AJ ^{[1
]}

Özen, A ^{[1
]}

Laricchia, G ^{[1
]}

机构：

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

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2000年 / 33卷 / 06期

关键词：

D O I：

10.1088/0953-4075/33/6/302

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An investigation into forward-angle scattering of Ps atoms from atomic and molecular targets is reported. This effect has been evaluated by varying the angular acceptance of the detector. theta, in the range +/-1.5 degrees to +/-6.4 degrees. By assuming an average differential cross section over this range, values of the total cross section (extrapolated to theta --> 0) for Ps-He, Ar and H(2) have been obtained. Where possible, the data are compared with available theoretical calculations.

引用

页码：1149 / 1157

页数：9

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