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dc.contributor.authorBailey, J.
dc.contributor.authorKadyrov, Alisher
dc.contributor.authorBray, Igor
dc.date.accessioned2017-01-30T13:50:40Z
dc.date.available2017-01-30T13:50:40Z
dc.date.created2015-10-29T04:09:18Z
dc.date.issued2015
dc.identifier.citationBailey, J. and Kadyrov, A. and Bray, I. 2015. Internal consistency in positron-hydrogen-scattering calculations. Physical Review A. 91 (1): Article ID 012712.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/35611
dc.identifier.doi10.1103/PhysRevA.91.012712
dc.description.abstract

Internal consistency in a close-coupling approach to positron-hydrogen scattering is investigated with a particular focus on the potential overlap between the atomic and positronium continua. We present results for total, total ionization, and 1s positronium-formation cross sections for projectile energies up to 100 eV. We show that, irrespective of whether the continuum is treated by one center, or the other, or both, the same cross sections are generally obtained. This is true only if sufficiently large orbital angular momentum is taken in the close-coupling expansion. Furthermore, unitarity of the close-coupling approach ensures convergence of the physically observable cross sections even if the individual components are not convergent.

dc.publisherAMER PHYSICAL SOC
dc.titleInternal consistency in positron-hydrogen-scattering calculations
dc.typeJournal Article
dcterms.source.volume91
dcterms.source.number1
dcterms.source.issn1050-2947
dcterms.source.titlePHYSICAL REVIEW A
curtin.departmentDepartment of Physics and Astronomy
curtin.accessStatusFulltext not available


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