Charge transfer in N2++H collisions at slow to intermediate velocities
Abstract
We have calculated charge-transfer cross sections for collisions of ground-state N2+ ions with atomic hydrogen for barycentric collision energies up to 5.4 keV/amu. The calculations were done using a combination of close-coupled and unitarized distorted-wave techniques after an expansion in NH2+ molecular states. In addition to the entrance channel, we included a single product channel dissociating to N+(2s2p3,3Do)+H+, both within the 3Π symmetry. Our results are in good agreement with recent experimental measurements of state-to-state charge-transfer cross sections except at higher energies, where increasing population of the N+(2s2p3,3Po) level was observed. The charge- transfer excitation process leading to the 3Po N+ state is not well described by the Landau-Zener approach.
- Publication:
-
Physical Review A
- Pub Date:
- March 1986
- DOI:
- 10.1103/PhysRevA.33.2078
- Bibcode:
- 1986PhRvA..33.2078B
- Keywords:
-
- Charge Transfer;
- Ion Atom Interactions;
- Ionic Collisions;
- Molecular Ions;
- Nitrogen Ions;
- Cross Sections;
- Dissociation;
- Electron States;
- Hydrogen Atoms;
- Plasma Physics;
- 34.70.+e;
- Charge transfer