Benchmark nonperturbative calculations for the electron-impact ionization of Li(2s) and Li(2p) -: art. no. 213201

被引:34
作者
Colgan, J [1 ]
Pindzola, MS
Mitnik, DM
Griffin, DC
Bray, I
机构
[1] Auburn Univ, Dept Phys, Auburn, AL 36849 USA
[2] Rollins Coll, Dept Phys, Winter Pk, FL 32789 USA
[3] Murdoch Univ, Sch Math & Phys Sci, Ctr Atom Mol & Surface Phys, Murdoch, WA 6150, Australia
关键词
D O I
10.1103/PhysRevLett.87.213201
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Three independent nonperturbative calculations are reported for the electron-impact ionization of both the ground and first excited states of the neutral lithium atom. The time-dependent close-coupling, the R matrix with pseudostates, and the converged close-coupling methods yield total integral cross sections that are in very good agreement with each other, while perturbative distorted-wave calculations yield cross sections that are substantially higher. These nonperturbative calculations provide a benchmark for the continued development of electron-atom experimental methods designed to measure both ground and excited state ionization.
引用
收藏
页码:213201 / 1
页数:4
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