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Search for a Neutrino with a Mass of 0.01-1.0 MeV in Beta Decays of 144Ce-144Pr Nuclei.

Authors :
Derbin, A. V.
Drachnev, I. S.
Lomskaya, I. S.
Muratova, V. N.
Pilipenko, N. V.
Semenov, D. A.
Tukkhonen, L. M.
Unzhakov, E. V.
Khusainov, A. Kh.
Source :
JETP Letters. Oct2018, Vol. 108 Issue 8, p499-503. 5p.
Publication Year :
2018

Abstract

Spectra of electrons from beta decays of 144Ce-144Pr nuclei have been measured and analyzed in order to find a contribution from a heavy neutrino. For the neutrino with the mass mνH in the interval of 150-350 keV, a new upper bound |UeH|2 ≤ (2−5) × 10−3 at 90% C.L. has been found for the mixing parameter. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00213640
Volume :
108
Issue :
8
Database :
Academic Search Index
Journal :
JETP Letters
Publication Type :
Academic Journal
Accession number :
133800409
Full Text :
https://doi.org/10.1134/S0021364018200067