Electron capture in collisions of N{sup +} with H and H{sup +} with N
Journal Article
·
· Physical Review. A
- Department of Physics and Astronomy and the Center for Simulational Physics, University of Georgia, Athens, Georgia 30602-2451 (United States)
Charge-transfer processes due to collisions of N{sup +} with atomic hydrogen and H{sup +} with atomic nitrogen are investigated using the quantum-mechanical molecular-orbital close-coupling (MOCC) method. The MOCC calculations utilize ab initio adiabatic potentials and nonadiabatic radial and rotational couplings obtained with the multireference single- and double-excitation configuration interaction approach. Total and state-selective cross sections for the energy range 0.1 meV/u-1 keV/u are presented and compared with existing experimental and theoretical data. A large number of low-energy resonances are obtained for exoergic channels and near thresholds of endoergic channels. Rate coefficients are also obtained and comparison to previous calculations suggests nonadiabatic effects dominate for temperatures greater than 20 000 K, but that the spin-orbit interaction plays a major role for lower temperatures.
- OSTI ID:
- 20717920
- Journal Information:
- Physical Review. A, Journal Name: Physical Review. A Journal Issue: 6 Vol. 71; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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