Journal article
Iteratively-coupled propagating exterior complex scaling method for electron–hydrogen collisions
Journal of Physics B: Atomic, Molecular and Optical Physics, Vol.37(4), pp.L69-L76
2004
Abstract
A newly-derived iterative coupling procedure for the propagating exterior complex scaling (PECS) method is used to efficiently calculate the electron-impact wavefunctions for atomic hydrogen. An overview of this method is given along with methods for extracting scattering cross sections. Differential scattering cross sections at 30 eV are presented for the electron-impact excitation to the n = 1, 2, 3 and 4 final states, for both PECS and convergent close coupling (CCC), which are in excellent agreement with each other and with experiment. PECS results are presented at 27.2 eV and 30 eV for symmetric and asymmetric energy-sharing triple differential cross sections, which are in excellent agreement with CCC and exterior complex scaling calculations, and with experimental data. At these intermediate energies, the efficiency of the PECS method with iterative coupling has allowed highly accurate partial-wave solutions of the full Schrödinger equation, for L ≤ 50 and a large number of coupled angular momentum states, to be obtained with minimal computing resources.
Details
- Title
- Iteratively-coupled propagating exterior complex scaling method for electron–hydrogen collisions
- Authors/Creators
- P.L. Bartlett (Author/Creator)A.T. Stelbovics (Author/Creator)I. Bray (Author/Creator)
- Publication Details
- Journal of Physics B: Atomic, Molecular and Optical Physics, Vol.37(4), pp.L69-L76
- Publisher
- Institute of Physics
- Identifiers
- 991005541470407891
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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- 2 Chemistry
- 2.15 Physical Chemistry
- 2.15.664 Dissociative Electron Attachment
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- Optics
- Physics, Atomic, Molecular & Chemical
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- Physics