Positronium formation cross-sections for Xe, CO2 and N2

被引：14

作者：

Cooke, D. A. ^{[1
]}

Murtagh, D. J. ^{[1
]}

Laricchia, G. ^{[1
]}

机构：

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

来源：

XV INTERNATIONAL WORKSHOP ON LOW ENERGY POSITRON AND POSITRONIUM PHYSICS | 2010年 / 199卷

关键词：

IMPACT IONIZATION; NOBLE-GASES; ATOMS; SCATTERING; COLLISIONS;

D O I：

10.1088/1742-6596/199/1/012006

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The positronium formation cross-sections for Xe, CO2 and N-2 have been measured using coincidences between gamma-rays from positronium self-annihilation and the resultant ion. In the case of Xe, there is excellent agreement with previous experimental determinations. For CO2 there is broad agreement in magnitude with previous measurements in contrast with N-2 where good shape agreement at low energies (<40 eV) is found though the magnitude of the present cross-section is significantly higher.

引用

页数：6

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