Minimal seesaw model for atmospheric and solar neutrino oscillations

Journal Article · Sat May 01 04:00:00 EDT 1999 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.59.097702· OSTI ID:336733

Ma, E ^[1]; Roy, D P ^[2]

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1. Department of Physics, University of California, Riverside, California 92521 (United States)
2. Department of Physics, University of Durham, Durham, DH1 3LE (United Kingdom)

We present a minimal seesaw model based on an extension of the standard model (SM) which includes an additional U(1), with gauge charge B{minus} (3) /(2) (L{sub {mu}}+L{sub {tau}}). The requirement of anomaly cancellation implies the existence of two right-handed singlet neutrinos, carrying this gauge charge, which have normal Dirac couplings to {nu}{sub {mu}} and {nu}{sub {tau}} but suppressed ones to {nu}{sub e}. Assuming the U(1) symmetry breaking scale to be 10{sup 12}{minus}10{sup 16} GeV, this model can naturally account for the large (small) mixing solutions to the atmospheric (solar) neutrino oscillations. {copyright} {ital 1999} {ital The American Physical Society}

• OSTI ID: 336733
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 9 Vol. 59; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
COSMIC NEUTRINOS
GAUGE INVARIANCE
NEUTRINO OSCILLATION
REST MASS
SOLAR NEUTRINOS
STANDARD MODEL
SYMMETRY BREAKING
U-1 GROUPS
UNITARY SYMMETRY