@inproceedings{437e3b7742cb4d469086838d95500ed7,
title = "Forbidden optical transition in Ti-like Xe, Ba, and Ir",
abstract = "We present measurements of the (3d4)5D2-5D3 transitions in the Ti-like ions Xe32+, Ba34+, and Ir55+ produced and trapped in the Heidelberg electron beam ion trap. The obtained wavelengths have a precision at the few ppm-level and are thereby the most precise measurements of these transitions up to date. For Z=60-75 semi-empirical calculations have shown excellent agreement, however our measurements combined with data from other works shows that outside this range predictions quickly deviate. The value obtained for Ir55+ 357.434(2) nm confirms the linear mismatch to ab initio calculations for Z > 70, as hypothesized in Utter et al., Phys. Rev. A 67, 012508 (2003).",
author = "H. Bekker and A. Windberger and Versolato, {O. O.} and M. Binder and R. Klawitter and L{\'o}pez-Urrutia, {J. R.Crespo}",
year = "2015",
month = jan,
day = "1",
doi = "10.1063/1.4905406",
language = "English",
series = "AIP Conference Proceedings",
publisher = "American Institute of Physics Inc.",
pages = "109--111",
editor = "Baumann, {Thomas M.} and Stefan Schwarz and Alain Lapierre",
booktitle = "Proceedings of the XII International Symposium on Electron Beam Ion Sources and Traps, EBIST 2014",
note = "12th International Symposium on Electron Beam Ion Sources and Traps, EBIST 2014 ; Conference date: 18-05-2014 Through 21-05-2014",
}