Nonadiabatic transitions upon atomic collisions

被引：4

作者：

Belyaev, A. K. ^{[1
]}

Vlasov, D. V. ^{[1
]}

Kas'yanova, A. M. ^{[1
]}

机构：

[1] Herzen State Pedag Univ, St Petersburg 191186, Russia

来源：

OPTICS AND SPECTROSCOPY | 2007年 / 103卷 / 06期

关键词：

34.10.+x; 34.50.Fa;

D O I：

10.1134/S0030400X07120144

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The standard interpretation of the adiabatic approach and the t matrix method for the calculation of the probabilities of nonadiabatic transitions and inelastic cross sections in atomic collisions is analyzed, and a model problem of collisions of hydrogen atoms with neutrons is considered. It is shown that the application of the standard approach results in a physically inconsistent result-considerable values of the excitation cross sections of hydrogen atoms by neutrons. The application of the t matrix method improves the result by two to three orders of magnitude even for a restricted basis set.

引用

页码：920 / 924

页数：5

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