Excitation of thestate ofby electron impact: Semiclassical exchange potentials at intermediate energies
- 1 December 1980
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 22 (6), 2519-2528
- https://doi.org/10.1103/physreva.22.2519
Abstract
Integrated and differential cross sections for the excitation of the state of , from the ground state, by electron impact, are presented. The energy range of interest is 10.5 to 40.0 eV. The close-coupling equations for this process are solved in five different exchange approximations: exact two-electron exchange terms, no orthogonality; exact two-electron exchange terms, orthogonality; semiclassical exchange terms, no orthogonality, with barrier term; semiclassical exchange terms, no orthogonality, no barrier term; and semiclassical exchange terms, orthogonality, with barrier term. The purpose is to judge the reliability of the semiclassical exchange approximation for electronic excitation of molecules by electron impact at intermediate energies. The results are compared with recent theoretical estimates for the same process.
Keywords
This publication has 23 references indexed in Scilit:
- Distorted-wave-approximation cross sections for excitation of theandstates ofby low-energy-electron impactPhysical Review A, 1980
- Low-energy collisions of electrons with highly polar molecules: Orthogonalization and model exchange potentialsPhysical Review A, 1979
- Electron collisions with highly polar molecules: Comparison of model, static, and static-exchange calculations for alkali-metal halidesPhysical Review A, 1978
- Application of the close-coupling method to excitation of electronic states and dissociation ofby electron impactPhysical Review A, 1978
- Exchange in low-energy electron-molecule scattering: Free-electron-gas model exchange potentials and applications to - and - collisionsPhysical Review A, 1978
- Semiclassical exchange approximation for inelastic electron scatteringThe Journal of Chemical Physics, 1978
- Low-energy electron-molecule scattering: Application of coupled-channel theory to-CcollisionsPhysical Review A, 1977
- Scattering of Electrons from. IIPhysical Review B, 1969
- Angular Dependence of Low-Energy Electron-Impact Excitation Cross Section of the Lowest Triplet States of H2The Journal of Chemical Physics, 1968
- Scattering of Electrons from: The Method of Polarized Single-Center OrbitalsPhysical Review B, 1967