https://doi.org/10.1007/s100530170144
Experimental and theoretical lifetimes in Yb III
1
Department of Physics, Lund Institute of Technology, P.O. Box 118, 221 00 Lund, Sweden
2
Astrophysique et Spectroscopie, Université de Mons-Hainaut, 7000 Mons, Belgium
3
IPNAS (Bât. B 15), Université de Liège, Sart Tilman, 4000 Liège, Belgium
Corresponding author: a sune.svanberg@fysik.lth.se
Received:
2
April
2001
Published online: 15 September 2001
Lifetimes of three levels belonging to the configuration 
with J=1 in Yb III
have been measured for the first time using the time-resolved laser-induced fluorescence
method. Experimental transition probabilities have been deduced for the transitions between
the levels studied and the ground state. The comparison of the experimental lifetimes with
theoretical data, deduced within the relativistic Hartree-Fock (HFR) approach, underlines the
dramatic importance of an adequate consideration of core-polarization effects in the
theoretical model and the sensitivity of one of the lifetime values to small correlation effects.
PACS: 32.70.Cs – Oscillator strengths, lifetimes, transition moments / 42.62.Fi – Laser spectroscopy
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2001
