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Single- and double-charge transfer in slow He2+-He collisions

The single- and double-electron capture processes in He2+-He collisions are investigated by the fully quantum-mechanical molecular orbital close-coupling method employing a basis containing 15 gerade and 14 ungerade molecular states. The energies and wavefunctions of He22+ molecular states included...

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Bibliographic Details
Published in:Journal of physics. B, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2012-12, Vol.45 (23)
Main Authors: Liu, C H, Wang, J G, Janev, R K
Format: Article
Language:English
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Summary:The single- and double-electron capture processes in He2+-He collisions are investigated by the fully quantum-mechanical molecular orbital close-coupling method employing a basis containing 15 gerade and 14 ungerade molecular states. The energies and wavefunctions of He22+ molecular states included in the study are determined ab initio by the multireference single- and double-excitation configuration interaction method. The dominant capture mechanisms are discussed and the integral and differential charge transfer cross sections are calculated in the energy range of 0.0005-17.5 keV/u and compared with other available experimental and theoretical results.
ISSN:0953-4075
1361-6455
DOI:10.1088/0953-4075/45/23/235203