An extension of the R-matrix theory of atomic photoionisation of Burke and Taylor (1975) to allow calculations within a pair-coupling scheme is reported. An application to the calculation of the photoionisation cross section and asymmetry parameter in the region of the Beutler-Fano resonances in argon is presented. The origins of phenomena not previously ascribable to any particular relativistic term in the Hamiltonian are accounted for.
|Journal||Journal of Physics B: Atomic and Molecular Physics|
|Publication status||Published - 01 Dec 1981|
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics