Exchange-polarization effects in electron impact excitation of atomic hydrogen and helium
- 21 April 1977
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 10 (6) , 1059-1071
- https://doi.org/10.1088/0022-3700/10/6/016
Abstract
The effects of allowing explicitly for exchange-polarization interactions are studied in the context of the distorted-wave polarized-orbital (DWPO) method. A modified version of earlier DWPO approximations is introduced and used to calculate differential cross sections for electron impact excitation of the n=2 level of atomic hydrogen. The results are compared with those of hybrid close-coupling methods and with absolute experimental measurements. The inclusion of exchange-polarization effects in the excitation of the S-states of helium is briefly discussed.Keywords
This publication has 24 references indexed in Scilit:
- Inelastic differential scattering of electrons by hydrogen atoms from 0.75-4 Ryd: n=2 statesJournal of Physics B: Atomic and Molecular Physics, 1976
- The 1s-2s and 1s-2p excitation of atomic hydrogen by electron impactJournal of Physics B: Atomic and Molecular Physics, 1976
- Scattering of electrons by hydrogen atoms at intermediate energies: total and differential cross sections for excitation of n=2 statesJournal of Physics B: Atomic and Molecular Physics, 1975
- Ab initiocross sections for excitation of the2pstate of hydrogen by electron impact at intermediate energiesPhysical Review A, 1975
- High-energy approximation for exchange scattering and application to 1 1S → 2 3S excitation of He by electron impactThe Journal of Chemical Physics, 1974
- Electron impact excitation cross sectionsComputer Physics Communications, 1974
- Many-body theory of the generalized optical potential for electron-atom (molecule) inelastic scatteringJournal of Physics B: Atomic and Molecular Physics, 1973
- Electron impact excitation of H and He+. I. 1s to ns transitionsJournal of Physics B: Atomic and Molecular Physics, 1973
- Study of the Polarized-Orbital Method and Its Application to the Scattering of Electrons by HeliumPhysical Review A, 1971
- Collisions of Slow Electrons and Positrons with Atomic HydrogenPhysical Review B, 1963