High-energy forward elastic scattering of electrons: Born amplitudes for a pseudostate model of atomic hydrogen
- 1 October 1984
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 30 (4) , 1636-1642
- https://doi.org/10.1103/physreva.30.1636
Abstract
Exact second-Born-approximation elastic scattering amplitudes are computed for a dipole excitation pseudostate model of electron scattering by ground-state atomic hydrogen. Calculations at 15, 25, and 35 keV incident energy show a forward peak in the differential elastic cross section. The optical theorem is exactly satisfied by these calculations, and the magnitude of the forward peak is determined primarily by physical values of the atomic static polarizability and oscillator strength. In the energy range considered, the computed peak is smaller by a large factor than the magnitude required to interpret recently observed experimental data in terms of single elastic collisions of electrons with ground-state atoms.Keywords
This publication has 13 references indexed in Scilit:
- Electron scattering and charge cloud polarisation. I. TheoryJournal of Physics B: Atomic and Molecular Physics, 1981
- Electron scattering and charge cloud polarisation. II. He and NeJournal of Physics B: Atomic and Molecular Physics, 1981
- A third-order optical potential theory for elastic scattering of electrons and positrons by atomic hydrogenJournal of Physics B: Atomic and Molecular Physics, 1981
- Exact second Born amplitude for elastic electron-hydrogen scatteringJournal of Physics B: Atomic and Molecular Physics, 1979
- Electron-Atom Shadow ScatteringPhysical Review Letters, 1979
- Elastic scattering of electrons and positrons by atomic hydrogen and helium at intermediate and high energiesJournal of Physics B: Atomic and Molecular Physics, 1977
- Elastic Electron-Atom Scattering at Intermediate EnergiesPhysical Review A, 1973
- Effective Long Range Potential for the Scattering of Electrons by Atoms and MoleculesThe Journal of Chemical Physics, 1972
- Channel-coupling effects in elastic collisions of electrons with atomsJournal of Physics B: Atomic and Molecular Physics, 1969
- A modification of the close-coupling approximation for e-H scattering allowing for the long-range interactionsProceedings of the Physical Society, 1967