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Convergent close-coupling calculations of low-energy positron–atomic-hydrogen scattering

Bray, I. and Stelbovics, A.T. (1993) Convergent close-coupling calculations of low-energy positron–atomic-hydrogen scattering. Physical Review A - Atomic, Molecular, and Optical Physics, 48 (6). pp. 4787-4789.

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The convergent close-coupling approach developed by the authors is applied to positron scattering from atomic hydrogen below the first excitation threshold. In this approach the multichannel-expansion one-electron states are obtained by diagonalizing the target Hamiltonian in a large Laguerre basis. It is demonstrated that this expansion of the scattering wave function is sufficient to reproduce the very accurate low-energy variational results, provided target states with l15 are included in the expansions.

Item Type: Journal Article
Murdoch Affiliation: Centre for Atomic, Molecular and Surface Physics
Publisher: The American Physical Society
Copyright: © 1993 The American Physical Society.
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