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Molecular-alignment dependence of collision-induced dissociation and electron capture in H2+ + He collisions.

Authors :
Liu, C. H.
Wang, J. G.
Janev, R. K.
Source :
Physical Review A: Atomic, Molecular & Optical Physics. Jun2014, Vol. 89 Issue 6-A, p1-8. 8p.
Publication Year :
2014

Abstract

The collision-induced dissociation (CID), electron capture (EC), and dissociative capture (DC) processes in H2+ + He collision are investigated by the quantum-mechanical molecular-orbital close-coupling method in the energy range of 0.02-10 keV/u. The studies are based on the ab initio calculation of the molecular structure data for different H2+ alignments with respect to the incident beam direction. The cross sections are compared with the available experimental and theoretical results. The CID process dominates the EC and DC processes. The CID cross sections sensitively depend on the molecular orientations at the time of dissociation in the energy region considered. Dissociation is found to be more likely to occur when the molecular axis is aligned perpendicular to the collision trajectory. The rotational couplings play an important role in dissociation processes. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
10502947
Volume :
89
Issue :
6-A
Database :
Academic Search Index
Journal :
Physical Review A: Atomic, Molecular & Optical Physics
Publication Type :
Periodical
Accession number :
97133810
Full Text :
https://doi.org/10.1103/PhysRevA.89.062719