Direct search for mass of neutrino and anomaly in the tritium beta-spectrum

Results of the “Troitsk ν-mass” experiment on the search for the neutrino rest mass in the tritium beta-decay are presented. Study of time dependence of anomalious, bump-like structure at the end of beta spectrum reported earlier gives indication of periodic shift of the position of the bump with re...

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Published inNuclear physics. Section B, Proceedings supplement Vol. 87; no. 1; pp. 275 - 277
Main Authors Lobashev, V.M, Aseev, V.N, Belesev, A.I, Berlev, A.I, Geraskin, E.V, Golubev, A.A, Kazachenko, O.V, Kuznetsov, Yu.E, Ostroumov, R.P, Rivkis, L.A, Stern, B.E, Titov, N.A, Zadoroghny, C.V, Zakharov, Yu.I
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.06.2000
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Summary:Results of the “Troitsk ν-mass” experiment on the search for the neutrino rest mass in the tritium beta-decay are presented. Study of time dependence of anomalious, bump-like structure at the end of beta spectrum reported earlier gives indication of periodic shift of the position of the bump with respect to end-point energy with period of 0.5 year. New upper limit for electron antineutrino rest mass m ν< 2.5 eV c 2 is derived after accounting for the bump.
ISSN:0920-5632
1873-3832
DOI:10.1016/S0920-5632(00)00678-2