Two-electron excitations in atomic calcium. II. Fine-structure effects
- 1 November 1987
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 36 (9) , 4272-4279
- https://doi.org/10.1103/physreva.36.4272
Abstract
A simple recoupling frame transformation is shown to adequately describe numerous effects of the spin-orbit interaction which show up in photoionization of the calcium atom. This is accomplished after solving the nonrelativistic Schrödinger equation in LS coupling by an eigenchannel R-matrix method, ignoring all spin-orbit terms in the Hamiltonian. The calculation reproduces most features of the total cross section observed experimentally, and predicts a strong effect of the spin-orbit interaction on partial cross sections, on the photoelectron angular distributions, and on the alignment of the ionic photofragments.Keywords
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