TY  - JOUR
AU  - Hannen, Volker
AU  - Vollbrecht, Jonas
AU  - Andelkovic, Zoran
AU  - Brandau, Carsten
AU  - Dax, Andreas
AU  - Geithner, Wolfgang
AU  - Geppert, Christopher
AU  - Gorges, Christian
AU  - Hammen, Michael
AU  - Kaufmann, Simon
AU  - König, Kristian
AU  - Litvinov, Yuri A
AU  - Lochmann, Matthias
AU  - Maaß, Bernhard
AU  - Meisner, Johann
AU  - Murböck, Tobias
AU  - Sanchez Alarcon, Rodolfo Marcelo
AU  - Schmidt, Matthias
AU  - Schmidt, Stefan
AU  - Steck, Markus
AU  - Stöhlker, Thomas
AU  - Thompson, Richard C
AU  - Trageser, Christian
AU  - Ullmann, Johannes
AU  - Weinheimer, Christian
AU  - Nörtershäuser, Wilfried
TI  - Lifetimes and g -factors of the HFS states in H-like and Li-like bismuth
JO  - Journal of physics / B Atomic, molecular and optical physics B
VL  - 52
IS  - 8
SN  - 1361-6455
CY  - Bristol
PB  - IOP Publ.36472
M1  - GSI-2019-00645
SP  - 085003 
PY  - 2019
N1  - "Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. "
AB  - The LIBELLE experiment performed at the experimental storage ring at the GSI Helmholtz Center for Heavy Ion Research in Darmstadt, Germany, has successfully determined the ground state hyperfine (HFS) splittings in hydrogen-like (<sup>209</sup>Bi<sup>82+</sup>) and lithium-like (<sup>209</sup>Bi<sup>80+</sup>) bismuth. The study of HFS transitions in highly charged ions enables precision tests of QED in extreme electric and magnetic fields otherwise not attainable in laboratory experiments. Besides the transition wavelengths the time-resolved detection of fluorescence photons following the excitation of the ions by a pulsed laser system also allows the extraction of lifetimes of the upper HFS levels and g-factors of the bound 1s and 2s electrons for both charge states. While the lifetime of the upper HFS state in <sup>209</sup>Bi<sup>82+</sup> has already been measured in earlier experiments, an experimental value for lifetime of this state in <sup>209</sup>Bi<sup>80+</sup> is reported for the first time in this work.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000463196500002
DO  - DOI:10.1088/1361-6455/ab0ef0
UR  - https://repository.gsi.de/record/218817
ER  -