Abstract
Isotope shifts of the pairs Ba 135–138 and 137–138 have been measured for the 6sns 1 S 0 (11≦n≦23) and 6sns 3 S 1 (14≦n≦23) Rydberg states. A quantitative analysis of the data in terms of hyperfine-induced singlet-triplet mixing was carried out. Admixtures of local perturbers belonging to the 5d 7d configuration were easily identified and admixture coefficients were derived.
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Part of this work would have not been possible without the term values of the3 S 1 series, kindly communicated to us by Dr. Camus. This work was supported by the Deutsche Forschungsgemeinschaft, Sonderforschungsbereich 161.
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Rinneberg, H., Neukammer, J. & Matthias, E. Isotope shifts of perturbed 6sns 1 S 0 and3 S 1 Rydberg states of odd barium isotopes. Z Physik A 306, 11–18 (1982). https://doi.org/10.1007/BF01413401
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DOI: https://doi.org/10.1007/BF01413401