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Direct search for the neutrino mass in the beta decay of tritium: Status of the “Troitsk ν-mass” experiment

  • Neutrino Physics
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Abstract

The results of the “Troitsk ν-mass” experiment on the search for the neutrino rest mass in tritium beta decay are presented. The investigation of the time dependence of the anomalous, bumplike structure at the end of the beta spectrum, reported earlier, gives an indication of the periodic shift of its position with respect to the endpoint with a period of 0.5 yr. An upper limit on the electron-antineutrino rest mass (m ν<2.5eV/c 2) is derived after taking the bump into account.

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Authors and Affiliations

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

    V. M. Lobashev

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  1. V. M. Lobashev
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From Yadernaya Fizika, Vol. 63, No. 6, 2000, pp. 1037–1043.

Original English Text Copyright © 2000 by Lobashev.

This article was submitted by the author in English.

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Lobashev, V.M. Direct search for the neutrino mass in the beta decay of tritium: Status of the “Troitsk ν-mass” experiment. Phys. Atom. Nuclei 63, 962–968 (2000). https://doi.org/10.1134/1.855732

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