Geometrical neutrino mass hierarchy and a 17-keV. nu. sub. tau

Journal Article · Mon Sep 16 04:00:00 EDT 1991 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.67.1498· OSTI ID:5220339

Babu, K S; Mohapatra, R N ^[1]

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1. Department of Physics and Astronomy, University of Maryland, College Park, Maryland (USA)

We present an extension of the singlet majoron gauge model which realizes a novel scheme of geometrical neutrino mass hierarchy proposed recently by Glashow, wherein {nu}{sub {ital e}} and {nu}{sub {mu}} are Majorana particles with {ital m}{sub {nu}{ital e}}{approx}{ital m}{sub {nu}{mu}}{approx}10{sup {minus}3} eV while {nu}{sub {tau}} is a Dirac particle with a mass of 17 keV. Our model explains the solar-neutrino deficit via the Mikheyev-Smirnov-Wolfenstein mechanism and accounts for the recently reported anomaly in beta-decay spectra in a natural manner without any undesirable fine tuning of parameters. An interesting consequence of the model is that {nu}{sub {tau}} is short lived with a lifetime of {approx}10{sup {minus}3--}10{sup {minus}1} sec.

• OSTI ID: 5220339
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 67:12; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

645101* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Electromagnetic Interactions & Properties
645102 -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ALGEBRAIC CURRENTS
BASIC INTERACTIONS
CHARGED CURRENTS
CURRENTS
DECAY
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
HIGGS BOSONS
INTERACTIONS
LAGRANGIAN FIELD THEORY
LEPTONIC DECAY
LEPTONS
MASS
MASSLESS PARTICLES
NEUTRINOS
NUCLEOSYNTHESIS
PARTICLE DECAY
POSTULATED PARTICLES
QUANTUM FIELD THEORY
RADIATIONS
SOLAR NEUTRINOS
SOLAR PARTICLES
SOLAR RADIATION
STELLAR RADIATION
SYNTHESIS
WEAK INTERACTIONS
WEAK PARTICLE DECAY