Excitation and charge transfer in proton-hydrogen collisions

被引:63
作者
Kolakowska, A [1 ]
Pindzola, MS
Robicheaux, F
Schultz, DR
Wells, JC
机构
[1] Auburn Univ, Dept Phys, Auburn, AL 36849 USA
[2] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA
[3] Oak Ridge Natl Lab, Ctr Computat Sci, Oak Ridge, TN 37831 USA
来源
PHYSICAL REVIEW A | 1998年 / 58卷 / 04期
关键词
D O I
10.1103/PhysRevA.58.2872
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Excitation and charge transfer cross sections for collisions of protons with hydrogen are calculated; by direct solution of the time-dependent Schrodinger equation on a three-dimensional Cartesian lattice. The 2s,2p, 3s, 3p, and 3d excitation cross sections and the Is, 2s, 2p, 3s, 3p, and 3d charge transfer cross sections from the Is ground state at 10-, 40-, and 100-keV incident proton energy are found by projecting a time-evolved wave function onto the lattice target states of hydrogen. Excitation processes are calculated in the rest frame of the hydrogen atom, while capture processes are calculated in the rest frame of the proton. The computed excitation and charge transfer cross sections are in good agreement with recent experiments and other theoretical results based on coupled-channels methods, [S1050-2947(98)03210-7].
引用
收藏
页码:2872 / 2880
页数:9
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