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Electron capture intensities in the decay of133Ba

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Zeitschrift für Physik

Abstract

The ground state decay of133Ba was investigated using NaI(Tl) scintillation crystals.P L/PK electron capture ratios were measured for the transitions to the 437 keV and to the 384 keV level of133Cs. The results are: (P L/PK)437=0.371±0.007 and (PP L/PK)384=0.221±0.005. From these data a mass difference between the ground states of the133Ba- and the133Cs-atom of (515±3) keV was derived. Besides, these capture ratios yield an exchange correction of 1.03±0.03. Furthermore, the intensity of the transition to the 161 keV level was determined to be smaller than 0.5% of all decays.

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Authors and Affiliations

  1. II. Physikalisches Institut der UniversitÄt Heidelberg, Deutschland

    G. Schulz

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  1. G. Schulz
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I am indebted to Prof. Dr. O.Haxel and Dr. H.Leutz for their stimulating interest and encouragement. I wish to acknowledge helpful discussions with Dr. W.Bühring and Dr. K.Ziegler. The Bundesministerium für Wissenschaftliche Forschung supported this research with equipment.

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Schulz, G. Electron capture intensities in the decay of133Ba. Z. Physik 203, 289–295 (1967). https://doi.org/10.1007/BF01325918

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  • DOI: https://doi.org/10.1007/BF01325918

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