Electron scattering by atoms and ions using the Breit-Pauli Hamiltonian: An R-matrix approach

N.S. Scott, P.G. Burke

Research output: Contribution to journalArticlepeer-review

196 Citations (Scopus)

Abstract

The R-matrix method describing the scattering of low-energy electrons by complex atoms and ions is extended to include terms of the Breit-Pauli Hamiltonian. An application is made to the astrophysically important 1s 2s S-1s 2s2p P transition in Fe XXIII, where in the most accurate calculations carried out all terms of the 1s 2s, 1s2s2p and 1s2p configurations are included in the expansion describing the collision. This gives up to 28 coupled channels for each total angular momentum and parity which are solved on a CRAY-1. The collision strengths are increased by more than a factor of two from their non-relativistic values at all energies considered.
Original languageEnglish
Pages (from-to)4299-4314
Number of pages16
JournalJournal of Physics B: Atomic and Molecular Physics
Volume13
Issue number21
DOIs
Publication statusPublished - 01 Jan 1980

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