Two-electron photoejection of He and H-

被引：66

作者：

Meyer, KW ^{[1
]}

Greene, CH ^{[1
]}

Esry, BD ^{[1
]}

机构：

[1] UNIV COLORADO,JILA,BOULDER,CO 80309

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 78卷 / 26期

关键词：

D O I：

10.1103/PhysRevLett.78.4902

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In order to overcome difficulties in the description of the two-electron continuum problem, we develop a finite element method to treat two-electron escape professes. Two-electron photoejection cross sections are obtained for helium and H- at photon energies in the range of 79-460 and 14.4-110 eV. The H- double detachment calculations are apparently the first nonperturbative quantum results in this energy range since the pioneering work of Broad and Reinhardt in 1976. Our branching ratio between single and double detachment of H- peaks at a value 25%-40% higher than the results from that early study.

引用

页码：4902 / 4905

页数：4

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