Double photoionization of helium
- 1 July 1981
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 24 (1), 170-176
- https://doi.org/10.1103/physreva.24.170
Abstract
Many-body perturbation theory is applied to calculate double-electron photoionization for helium. While lowest-order results show reasonable agreement with experiment, it is found that certain higher-order correlation effects are significant. Techniques are presented for approximating these effects in a calculation which is first order in electron correlations.Keywords
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