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Das Positronenspektrum von22Na und die Ruhemasse des Neutrinos aus dem β+-Zerfall

The positron spectrum of22Na and the rest mass of the neutrino from β+ decay

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Zeitschrift für Physik

Abstract

Theβ + spectrum of22Na has been measured with the Heidelberg (π/2) √13 iron-freeβ-ray spectrometer. Particular attention was paid to the upper end of the continuum. The maximum energy was found to beE max=(545.7 ±0.5) keV. The rest mass of the neutrino connected withβ + decay was found to be zero with an upper limit of 4.1 keV (67 per cent confidence).

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Authors and Affiliations

  1. Max-Planck-Institut für Kernphysik, Heidelberg

    E. Beck & H. Daniel

  2. CERN, Genf

    E. Beck & H. Daniel

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  1. E. Beck
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  2. H. Daniel
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Beck, E., Daniel, H. Das Positronenspektrum von22Na und die Ruhemasse des Neutrinos aus dem β+-Zerfall. Z. Physik 216, 229–231 (1968). https://doi.org/10.1007/BF01392961

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  • DOI: https://doi.org/10.1007/BF01392961

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