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Multichannel excitation cross sections of sodium atoms at slow collisions with hydrogen atoms
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Theoretical Astrophysics.
2011 (English)In: Optics and Spectroscopy, ISSN 0030-400X, E-ISSN 1562-6911, Vol. 110, no 3, 321-327 p.Article in journal (Refereed) Published
Abstract [en]

Excitation cross sections at slow collisions of hydrogen and sodium atoms are calculated based on two sets of quantum-chemical data. The results of calculations permit one to conclude that, upon the excitation of the sodium atom from the ground state in the region of near-threshold energies, the cross sections are highly sensitive to matrix nonadiabaticity elements. In addition, the matrix nonadiabaticity element was varied for the transition 3s -> 3p of the sodium atom at fixed collision energy near the reaction threshold. It was found that the variation leads to a significant change in the excitation cross section 3s -> 3p, and the range of the energetic dependence of this cross section was determined.

Place, publisher, year, edition, pages
2011. Vol. 110, no 3, 321-327 p.
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-151962DOI: 10.1134/S0030400X1103026XISI: 000289001700001OAI: oai:DiVA.org:uu-151962DiVA: diva2:413661
Available from: 2011-04-29 Created: 2011-04-20 Last updated: 2012-10-18Bibliographically approved

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Barklem, Paul
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