Electron-impact excitation of hydrogenic ions
Journal Article
·
· Phys. Rev. A; (United States)
The 1s..-->..2s and 1s..-->..2p excitations of the hydrogenic ions C/sup 5 +/ and O/sup 7 +/ are studied using a pseudostate expansion. A small (3-s, 3-p) basis is used above the n = 3 threshold while in the resonance region between the n = 2 and n = 3 thresholds a larger (6-s, 5-p, 2-d, and 1-f ) set is employed. The coupled integrodifferential equations are solved by a variational approach. High-energy and high-L results are found using the Coulomb-Born approximation with exchange. Positions and widths of resonances are given. An analytic fit to the calculated K matrices is used to determine cross sections in the resonance region. Excitation rates are computed.
- Research Organization:
- Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803
- OSTI ID:
- 6007103
- Journal Information:
- Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 24:5; ISSN PLRAA
- Country of Publication:
- United States
- Language:
- English
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