Absolute Differential Positronium-Formation Cross Sections

被引：18

作者：

Shipman, M. ^{[1
]}

Armitage, S. ^{[1
]}

Beale, J. ^{[1
]}

Brawley, S. J. ^{[1
]}

Fayer, S. E. ^{[1
]}

Garner, A. J. ^{[1
]}

Leslie, D. E. ^{[1
]}

Van Reeth, P. ^{[1
]}

Laricchia, G. ^{[1
]}

机构：

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

来源：

PHYSICAL REVIEW LETTERS | 2015年 / 115卷 / 03期

基金：

英国工程与自然科学研究理事会;

关键词：

COLLIMATED POSITRONIUM; IMPACT-IONIZATION; HELIUM SCATTERING; REARRANGEMENT COLLISIONS; IONIZING COLLISIONS; HYDROGEN COLLISIONS; ELASTIC-SCATTERING; ANGLE SCATTERING; ENERGY POSITRONS; PS-FORMATION;

D O I：

10.1103/PhysRevLett.115.033401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The first absolute experimental determinations of the differential cross sections for the formation of ground-state positronium are presented for He, Ar, H-2, and CO2 near 0 degrees. Results are compared with available theories. The ratio of the differential and integrated cross sections for the targets exposes the higher propensity for forward emission of positronium formed from He and H-2.

引用

页数：5

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