Two 17-keV Majorana neutrinos?

Details Two 17-keV Majorana neutrinos? Two 17-keV Majorana neutrinos?

May 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985phrvl..54.2302d&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 54, May 27, 1985, p. 2302-2305.

Mathematics

71

Cosmology, Neutrinos, Particle Mass, Radioactive Decay, Beta Particles, Matrices (Mathematics), Oscillations, Radiative Lifetime, Tritium

Scientific paper

The observation of a 17-keV neutrino in tritium beta decay (Simpson, 1985) can be incorporated into the standard model with just three light neutrinos. Constraints on neutrino masses suggest that the lepton mass matrices have an approximate global symmetry which results in two of the three neutrinos having masses near 17 keV. A prediction for the mixing angle in nu(e)-nu(tau) oscillations is made. Cosmological constraints on the 17-keV neutrino are discussed. Models with majorons or familons are found to be attractive possibilities.

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