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New bound to the probability of 76Ge ββ decay to the 0 +1 76Se level

  • Fields, Particles, Nuclei
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Abstract

Measurements were carried out at the underground low-background laboratory of the Baksan Neutrino Observatory using a detection system involving four ultrapure germanium detectors made from enriched 76Ge. The sensitivity of the experiment to the detection of a 76Ge double beta decay to the excited levels of the 76Se nucleus was determined. As a result of 228-day measurements, the new bound to the time of 76Ge half-decay to the 76Se 0 +1 excited level is found to be T 1/2(2ν2β)≥6.2×1021 years (90% confidence level).

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Authors and Affiliations

  1. Institute for Nuclear Research, Russian Academy of Sciences, pr. Shestidesyatiletiya Oktyabrya 7a, Moscow, 117312, Russia

    S. I. Vasil’ev, A. A. Klimenko, S. B. Osetrov & A. A. Smol’nikov

  2. Joint Institute for Nuclear Research, Dubna, Moscow region, 141980, Russia

    S. I. Vasil’ev, A. A. Klimenko, S. B. Osetrov & A. A. Smol’nikov

Authors
  1. S. I. Vasil’ev
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  2. A. A. Klimenko
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  3. S. B. Osetrov
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  4. A. A. Smol’nikov
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Translated from Pis’ma v Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 72, No. 6, 2000, pp. 407–410.

Original Russian Text Copyright © 2000 by Vasil’ev, Klimenko, Osetrov, Smol’nikov.

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Vasil’ev, S.I., Klimenko, A.A., Osetrov, S.B. et al. New bound to the probability of 76Ge ββ decay to the 0 +1 76Se level. Jetp Lett. 72, 279–281 (2000). https://doi.org/10.1134/1.1328436

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  • DOI: https://doi.org/10.1134/1.1328436

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