Complete direct method for electron-hydrogen scattering: Application to the collinear and Temkin-Poet models

P.L. Bartlett; A.T. Stelbovics

doi:10.1103/PhysRevA.69.022703

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Complete direct method for electron-hydrogen scattering: Application to the collinear and Temkin-Poet models

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Complete direct method for electron-hydrogen scattering: Application to the collinear and Temkin-Poet models

P.L. Bartlett and A.T. Stelbovics

Physical Review A - Atomic, Molecular, and Optical Physics, Vol.69(2)

2004

DOI: https://doi.org/10.1103/PhysRevA.69.022703

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Abstract

We present an efficient generalization of the exterior complex scaling (ECS) method to extract discrete inelastic and ionization amplitudes for electron-impact scattering of atomic hydrogen. This fully quantal method is demonstrated over a range of energies for the collinear and Temkin-Poet models and near-threshold ionization is examined in detail for singlet and triplet scattering. Our numerical calculations for total ionization cross sections near threshold strongly support the classical threshold law of Wannier [Phys. Rev. 90, 817 (1953)] (σ∝E1.128±0.004) for the L=0 singlet collinear model and the semiclassical threshold law of Peterkop [J. Phys. B 16, L587 (1983)] (σ∝E3.37±0.02) for the L=0 triplet collinear model, and are consistent with the semiclassical threshold law of Macek and Ihra [Phys. Rev. A 55, 2024 (1997)] (σ∝exp[(-6.87±0.01)E-1/6]) for the singlet Temkin-Poet model.

Details

Title: Complete direct method for electron-hydrogen scattering: Application to the collinear and Temkin-Poet models
Authors/Creators: P.L. Bartlett (Author/Creator) - Murdoch University
A.T. Stelbovics (Author/Creator) - Murdoch University
Publication Details: Physical Review A - Atomic, Molecular, and Optical Physics, Vol.69(2)
Publisher: The American Physical Society
Identifiers: 991005544664007891
Copyright: © 2004 The American Physical Society
Murdoch Affiliation: Centre for Atomic, Molecular and Surface Physics
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration
Citation topics: 2 Chemistry; 2.15 Physical Chemistry; 2.15.664 Dissociative Electron Attachment
Web Of Science research areas: Optics; Physics, Atomic, Molecular & Chemical
ESI research areas: Physics