ELECTRON CORRELATION-EFFECTS IN THE DISSOCIATIVE IONIZATION OF H2

被引：43

作者：

KRISHNAKUMAR, E ^{[1
]}

SRIVASTAVA, SK ^{[1
]}

机构：

[1] JET PROP LAB,PASADENA,CA 91109

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1994年 / 27卷 / 11期

关键词：

D O I：

10.1088/0953-4075/27/11/004

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The dissociative and non-dissociative ionization of H-2 by electron impact has been measured up to 1 keV incident energy using a pulsed electron beam and pulsed ion extraction technique in conjunction with a time-of-flight spectrometer and relative flow technique. These data represent the first accurate measurement on the dissociative ionization of H-2 by electron impact over such a large energy range. It has been shown that the ratio, R*, of the dissociative ionization cross section to non-dissociative ionization cross section in H-2 serves as a useful parameter in probing the electron correlation effects. A comparison of the value of R* obtained by electron impact with those obtained by proton and antiproton impact shows strong dependence on the sign of the projectile charge.

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页码：L251 / L258

页数：8

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