A theoretical study of mutual neutralization of He++H- collisions
(English)Manuscript (preprint) (Other academic)
Total and differential cross sections for mutual neutralization in low energy (0.001 eV -100 eV) He + and H − collisions 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 Σ + symmetry where autoionization is incorporated. The potential energy curves, autoionization widths and non-adiabatic 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 Σ + and 2 Π electronic states are investigated in the pure precession approximation.
Atom and Molecular Physics and Optics
Research subject Theoretical Physics
IdentifiersURN: urn:nbn:se:su:diva-128800OAI: oai:DiVA.org:su-128800DiVA: diva2:916696