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Theoretical study of mutual neutralization in He+ + H- collisions
Stockholm University, Faculty of Science, Department of Physics.
Stockholm University, Faculty of Science, Department of Physics.
Number of Authors: 3
2016 (English)In: Physical Review A, ISSN 2469-9926, Vol. 94, no 2, 022709Article in journal (Refereed) Published
Abstract [en]

Total and differential cross sections for mutual neutralization in He+ and H- collisions at low to intermediate (0.001 eV to 100 eV) are calculated ab initio and fully quantum mechanically. Atomic final-state distributions and isotope effects are investigated. The theoretical model includes dynamics on eleven coupled states of (2)Sigma(+) symmetry, where autoionization is incorporated. The potential-energy curves, autoionization widths, and nonadiabatic couplings of electronic resonant states of HeH are computed by combining structure calculations with electron scattering calculations. The nuclear dynamics is studied using a strict diabatic representation of the resonant states. Effects of rotational couplings between (2)Sigma(+) and (2)Pi electronic states are investigated in the pure precession approximation.

Place, publisher, year, edition, pages
2016. Vol. 94, no 2, 022709
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-134420DOI: 10.1103/PhysRevA.94.022709ISI: 000381473600007OAI: oai:DiVA.org:su-134420DiVA: diva2:1037245
Available from: 2016-10-14 Created: 2016-10-06 Last updated: 2016-10-14Bibliographically approved

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