Neutrino Masses and the Scale of B-L Violation

Wetterich, C.

doi:10.1016/0550-3213(81)90279-0

Neutrino Masses and the Scale of B-L Violation

C. Wetterich
(
- Freiburg U.
)

Feb, 1981

33 pages

Published in:

Nucl.Phys.B 187 (1981) 343-375

Published: 1981

DOI:

10.1016/0550-3213(81)90279-0

Report number:

FREIBURG-THEP-81-2

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Abstract: (Elsevier)

A systematic study of neutrino masses in models with local B - L symmetry is presented. The observed SU(4) c violation in fermion masses, which is necessary to explain why m e is not equal m d , is related to the scale of B - L violation. An alternative approach uses renormalization group methods to determine this scale. The heaviest neutrino mass is predicted to be 0.1–50 eV in the case of four fermion generations. Two different generation patterns for neutrino masses are found, one predicting large mixing between ν e and ν μ (and eventually ν τ ) and the other predicting leptonic mixing angles of the same order as quark mixing angles.

NEUTRINO: MASS
MASS: NEUTRINO
B-L NUMBER: VIOLATION
SYMMETRY BREAKING: SU(4)
FERMION: MULTIPLET
MULTIPLET: FERMION
MULTIPLET: INTERFERENCE
INTERFERENCE: MULTIPLET
LEPTON: MAJORANA
GAUGE FIELD THEORY: SU(4) X SU(2) X SU(2)

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