APPROXIMATIONS TO 2-STATE IMPACT-PARAMETER TREATMENT OF HEAVY-PARTICLE COLLISIONS

被引：7

作者：

FLANNERY, MR

机构：

[1] Smithsonian Astrophysical Observatory, Harvard College Observatory, Cambridge, MA

来源：

JOURNAL OF PHYSICS PART B ATOMIC AND MOLECULAR PHYSICS | 1969年 / 2卷 / 09期

关键词：

D O I：

10.1088/0022-3700/2/9/301

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The adiabatic and distortion approximations to a two-state treatment in the impact-parameter formulation of heavy-particle collisions are used to calculate the 2s and 2p single-excitation cross sections describing collisions between two ground-state hydrogen atoms with impact energy E in the range 360 ev <or= E <or= 100 kev. Comparison with results of an exact two-state treatment shows that the adiabatic approximation accounts remarkably well for the effect of back-coupling, which is neglected in the distortion approximation and which assumes increasing importance as the impact energy is lowered.

引用

页码：909 / &

共 8 条

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