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Application of exterior complex scaling to positron-hydrogen collisions including rearrangement

Bartlett, P.L., Stelbovics, A.T., Rescigno, T. and McCurdy, C.W. (2008) Application of exterior complex scaling to positron-hydrogen collisions including rearrangement. Physical Review A - Atomic, Molecular, and Optical Physics, 77 (3).

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Link to Published Version: http://dx.doi.org/10.1103/PhysRevA.77.032710
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Abstract

The application of an exterior complex scaling method to an atomic scattering problem with distinct rearrangement channels is reported. Calculations are performed for positron-hydrogen collisions in an s -wave model employing an electron-positron potential of V12 =- [8+ (r1 - r2) 2] -1/2, using the time-independent propagating exterior complex scaling method. This potential has the correct long-range Coulomb tail of the full problem and the results demonstrate that exterior-complex-scaling-based methods can accurately calculate scattering, ionization,and positronium formation cross sections in this three-body rearrangement collision.

Publication Type: Journal Article
Murdoch Affiliation: Centre for Atomic, Molecular and Surface Physics
Publisher: The American Physical Society
Copyright: © 2008 The American Physical Society.
URI: http://researchrepository.murdoch.edu.au/id/eprint/14149
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