https://doi.org/10.1007/s100530070063
Lifetimes of metastable states in Sr II
1
Physique Nucléaire Experimentale (Bât. B15), Université de Liège, Sart Tilman, 4000
Liège 1, Belgium
2
Astrophysique et Spectroscopie, Université de Mons-Hainaut, rue de la Halle 15, 7000
Mons, Belgium
3
Atomic Physics, Stockholm University, 104 05 Stockholm, Sweden
4
Physics Department in Frescati, Royal Institute of Technology, 104 05 Stockholm,
Sweden
5
Physics Department, Stockholm University, P.O. Box 6730, 113 85 Stockholm, Sweden
6
Fachbereich Physik, Universitt Kaiserslautern, 67663 Kaiserslautern, Germany
Received:
15
February
2000
Revised:
20
March
2000
Published online: 15 September 2000
The lifetimes of the 4d 2D3/2,5/2 levels of Sr+ have been determined both experimentally and theoretically. The experiment was performed at an ion storage ring utilising collinear laser excitation. The calculation was performed by the Hartree-Fock method including relativistic effects and core polarisation. The obtained lifetimes (which are about 0.4 s) are discussed in detail and compared with earlier published results. In addition, calculated lifetimes of a large number of excited states in Sr+ are included.
PACS: 31.10.+z – Theory of electronic structure, electronic transitions, and chemical binding / 32.70.Cs – Oscillator strengths, lifetimes, transition moments
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2000
