CONVERGENT J-MATRIX CALCULATION OF ELECTRON-HELIUM RESONANCES

被引：13

作者：

KONOVALOV, DA

MCCARTHY, IE

机构：

[1] Electronic Structure of Materials Centre, The Flinders University of South Australia, Adelaide, SA 5001

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1995年 / 28卷 / 05期

关键词：

D O I：

10.1088/0953-4075/28/5/006

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Resonance structures in n = 2 and n = 3 electron-helium excitation cross sections are calculated using the J-matrix method. The number of close-coupled helium bound and continuum states is taken to convergence, e.g. about 100 channels are coupled for each total spin and angular momentum. It is found that the present J-matrix results are in good shape agreement with recent 29-state R-matrix calculations. However, the J-matrix absolute cross sections are slightly lower due to the influence of continuum channels included in the present method. Experiment and theory agree on the positions on the n = 2 and n = 3 resonances.

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收藏

页码：L139 / L145

页数：7

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