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 anomalous, bump-like structure at the end of beta spectrum reported earlier gives indication of periodic shift of the position of the bump with res...

Full description

Saved in:
Bibliographic Details
Published inPhysics letters. B Vol. 460; no. 1; pp. 227 - 235
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, Zadorozhny, S.V, Zakharov, Yu.I
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.08.1999
Subjects
Anomaly
Neutrino mass
Spectrum
Tritium
Tritium
Anomaly
Neutrino mass
Spectrum
Online AccessGet full text

Cover

More Information
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 anomalous, 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 the end-point energy with a period of 0.5 year. A new upper limit for electron antineutrino rest mass m ν <2.5 eV/c 2 95% C.L. is derived after accounting for the bump.
ISSN:0370-2693
1873-2445
DOI:10.1016/S0370-2693(99)00781-9