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Lifetime measurements and calculations in La I

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Abstract.

Radiative lifetime measurements have been performed, with a time-resolved laser-induced fluorescence technique, for 20 odd-parity levels of La I belonging to the configurations 5d 26p, 5d6s6p and 4f5d6s. The new results are compared with the few experimental data available in the literature and with theoretical calculations including configuration interaction effects. The agreement theory-experiment is generally satisfying but discrepancies are observed for some levels emphasizing the difficulty to get a reliable theoretical model in such a heavy and complex neutral element.

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Author information

Authors and Affiliations

  1. IPNAS, Université de Liége, Sart Tilman (Bât. B15), 4000, Liége, Belgium

    E. Biémont & P. Quinet

  2. Astrophysique et Spectroscopie, Université de Mons-Hainaut, 7000, Mons, Belgium

    E. Biémont & P. Quinet

  3. Department of Physics, Lund Institute of Technology, P.O. Box 118, 221 00, Lund, Sweden

    S. Svanberg & H. L. Xu

Authors
  1. E. Biémont
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  2. P. Quinet
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  3. S. Svanberg
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  4. H. L. Xu
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Corresponding author

Correspondence to E. Biémont.

Additional information

Received: 26 January 2004, Published online: 22 June 2004

PACS:

32.70.Cs Oscillator strengths, lifetimes, transition moments - 42.62.Fi Laser spectroscopy

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Biémont, E., Quinet, P., Svanberg, S. et al. Lifetime measurements and calculations in La I. Eur. Phys. J. D 30, 157–162 (2004). https://doi.org/10.1140/epjd/e2004-00077-3

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  • DOI: https://doi.org/10.1140/epjd/e2004-00077-3

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