Answers are grounded in this paper and cite their sources.
We discuss the first absolute energy measurements of the intercombination and forbidden transitions ( xyz ,, ) in trapped Ti 20+ ions to 15 parts per million accuracy. We present new measurements on helium-like titanium, in which the orbital radius is reduced and QED terms are magnified by the increased nuclear charge. The measured transition energies are higher than predicted.
No takes yet. Share an insight, caveat, or question.
Payne et al. (2014) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: