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
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