Answers are grounded in this paper and cite their sources.
Radiative lifetimes of vacuum uv multiplets classified as (3s²3pᵐ-3s3pᵐ⁺¹) in Ar II, Ar III, Ar IV, S II, and Cl II, measured with a pulsed-electron technique, are found to be cascade free with lifetimes 13 to 55 times larger than given by central-field calculations. The discrepancy is attributed to configuration mixing with terms of the 3s3p^m-13d configurations.
No takes yet. Share an insight, caveat, or question.
G. M. Lawrence (1969) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: