Cross sections for low-energy inelastic H+Li collisions

被引：98
|
作者：
Belyaev, AK [1 ]
Barklem, PS
机构：
[1] AI Herzen Univ, Dept Theoret Phys, St Petersburg 191186, Russia
[2] Uppsala Univ, Dept Space Phys & Astron, SE-75120 Uppsala, Sweden
来源：
PHYSICAL REVIEW A | 2003年 / 68卷 / 06期
关键词：
D O I：
10.1103/PhysRevA.68.062703
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report calculations for the low-energy near-threshold inelastic collision cross sections between the Li(2s,2p,3s,3p)+H(1s) states. Results are obtained by solving the coupled-channel equations. Order-of-magnitude estimates for higher states have been made with the multichannel Landau-Zener model. Potentials and couplings from H. Croft et al [J. Phys. B 32, 81 (1999)] are employed. The calculated cross sections are much smaller than ones predicted by the classical Thomsom atom formula currently employed in astrophysics. This result is important for the interpretation of stellar spectra.
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页数：9
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