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- Title
Internal consistency in the close-coupling approach to positron collisions with atoms.
- Authors
Bray, Igor; Bailey, Jackson J.; Fursa, Dmitry V.; Kadyrov, Alisher S.; Utamuratov, Ravshanbeck
- Abstract
The positron-atom scattering problem contains the rearrangement channel of positronium (Ps) formation. While this makes the problem particularly difficult to calculate, it has the unusual benefit of validation via consideration of the internal consistency of the vastly different one- and two-centre close-coupling approaches. For example, the ionisation cross section in the former must be the same as the sum of breakup and Ps formation cross sections in the latter. This places a severe test on both approaches, which we review here for positron scattering on hydrogen and helium atoms. Graphical abstract: [Figure not available: see fulltext.]
- Subjects
TEST reliability; POSITRONIUM; IONIZATION cross sections; HYDROGEN atom; POSITRON scattering; HELIUM atom
- Publication
European Physical Journal D (EPJ D), 2016, Vol 70, Issue 1, p1
- ISSN
1434-6060
- Publication type
Article
- DOI
10.1140/epjd/e2015-60591-7