EJECTED-ELECTRON ENERGY-SPECTRA IN LOW-ENERGY POSITRON ARGON COLLISIONS

被引：38

作者：

MOXOM, J ^{[1
]}

LARICCHIA, G ^{[1
]}

CHARLTON, M ^{[1
]}

JONES, GO ^{[1
]}

KOVER, A ^{[1
]}

机构：

[1] INST NUCL RES, DEBRECEN, HUNGARY

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1992年 / 25卷 / 23期

关键词：

D O I：

10.1088/0953-4075/25/23/005

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Energy spectra of electrons ejected from an argon target by positron impact have been measured and compared with theoretical expectations. No major cusp structure was observed in any of these spectra. Instead a small ridge is present in some cases at energies compatible with electron capture to continuum (ECC) states of positronium. Its magnitude suggests that ECC makes a minor contribution to ionization by a light positively charged projectile.

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页码：L613 / L619

页数：7

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