Family Symmetry and Neutrino Mixing

Journal Article · Tue Dec 01 00:00:00 EST 1998 · Physical Review Letters

OSTI ID:670237

Irges, N; Ramond, P ^[1]; Elwood, J K ^[2]

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1. Institute for Fundamental Theory, Department of Physics, University of Florida, Gainesville, Florida 32611 (United States)
2. Department of Physics, Kent State University, Kent, Ohio 44242 (United States)

The observed quark hierarchies suggest a simple family symmetry. Generalized to leptons through grand-unified quantum numbers, it produces a neutrino mixing matrix with order-1 {nu}{sub {mu}}{minus}{nu}{sub {tau}} mixing, and order-{lambda}{sup 3} {nu}{sub e}{minus}{nu}{sub {mu}} and {nu}{sub e}{minus}{nu}{sub {tau}} mixings. The intrafamily hierarchy and observed neutrino mass differences together require this symmetry to be anomalous, suggesting through the Green-Schwarz mechanism a string or M -theory origin for the symmetry. {copyright} {ital 1998} {ital The American Physical Society}

• DOE Contract Number: FG02-97ER41029
• OSTI ID: 670237
• Journal Information: Physical Review Letters, Vol. 81, Issue 23; Other Information: PBD: Dec 1998
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
NEUTRINOS
QUARKS
STANDARD MODEL
TAU NEUTRINOS
MUON NEUTRINOS
ELECTRON NEUTRINOS
GRAND UNIFIED THEORY