Many-body calculation of negative ions using the Dyson equation

14 August 1988

journal article
Published by IOP Publishing in Journal of Physics B: Atomic, Molecular and Optical Physics

Vol. 21 (15) , L419-L425
https://doi.org/10.1088/0953-4075/21/15/001

Abstract

A new method of calculating atomic negative ions is developed. It is based on the Dyson equation, and gives the binding energy and the wavefunction of the outer electron in the negative ion. The calculation for He^- 1s2s2p ⁴P is consistent with experiment. The photodetachment cross section for He^- ⁴P is calculated for the first time. The phaseshift for p-electron quartet scattering by He 1s2s ³S is presented. Results for the first calculation of Pd^- 4d¹⁰5s ²S are reported.

Keywords

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