Model of four light neutrinos in the light of all present data

Journal Article · Wed Nov 01 04:00:00 EST 1995 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.52.R4780· OSTI ID:118530

Ma, E ^[1]; Roy, P ^[2]

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1. Department of Physics, University of California, Riverside, California 92521 (United States)
2. Tata Institute of Fundamental Research, Homi Bhabha Road, Bombay 400005 (India)

Motivated by existing and recent data on possible neutrino oscillations, we propose a model of four light neutrinos ({nu}{sub {ital e}}, {nu}{sub {mu}}, {nu}{sub {tau}}, and a singlet {nu}{sub {ital S}}) with a pattern of masses and mixing derivable from a discrete {ital Z}{sub 5} symmetry and the seesaw mechanism. Atmospheric neutrino oscillations occur between {nu}{sub {mu}} and {nu}{sub {tau}} as pseudo Dirac partners, whereas solar neutrino oscillations occur between {nu}{sub {ital e}} and {nu}{sub {ital S}}, a linear combination of which is massless. Additional oscillations may occur between {nu}{sub {ital e}} and {nu}{sub {mu}} to account for the recent observation of the LSND (Liquid Scintillator Neutrino Detector) experiment.

• Research Organization: University of California
• DOE Contract Number: FG03-94ER40837
• OSTI ID: 118530
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 9 Vol. 52; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
DOUBLE BETA DECAY
FLAVOR
MASS
MIXING
NEUTRINO OSCILLATION
R PROCESS
SOLAR NEUTRINOS
SUPERNOVAE