Absolute multiplet strengths for 4L-4L? transitions of the helium sequence
- 1 November 1969
- journal article
- research article
- Published by Taylor & Francis in Molecular Physics
- Vol. 17 (5) , 441-448
- https://doi.org/10.1080/00268976900101281
Abstract
Absolute multiplet strengths for dipole transitions between 1s4l 1,3 L and 1s4l′1,3 L′ of the helium isoelectronic sequence have been calculated in the L-S coupling scheme exactly up to first order in perturbation theory within the context of the Z -1 expansion method. Calculated f values for helium transitions are compared with accurate variational results. f values for Li+ transitions are obtained using experimental transition energies.Keywords
This publication has 11 references indexed in Scilit:
- Transition probability and oscillator strength by perturbation theory: 1s3p1,3P−1s3d1,3D transition in helium isoelectronic sequenceInternational Journal of Quantum Chemistry, 1969
- Oscillator strengths by perturbation theoryMolecular Physics, 1968
- An expansion method for calculating atomic properties X. 1 s 2 1 S -1 snp 1 P transitions of the helium sequenceProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1967
- An expansion method for calculating atomic properties. VIII. Transitions in the Hartree-Fock approximationProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1966
- Dipole Matrix Elements for Helium in the First-Order Shielding ApproximationThe Journal of Chemical Physics, 1965
- An expansion method for calculating atomic properties, V. Transition probabilities of M shell electronsProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1965
- Wave Functions for the Excited States of Neutral HeliumPhysical Review B, 1965
- A variational principle for off diagonal matrix elements and its limitationsJournal of Quantitative Spectroscopy and Radiative Transfer, 1964
- An expansion method for calculating atomic properties IV. Transition probabilitiesProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1964
- The screening approximation for the helium sequenceProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1960