Minimal seesaw model for atmospheric and solar neutrino oscillations
Journal Article
·
· Physical Review, D
- Department of Physics, University of California, Riverside, California 92521 (United States)
- 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, Vol. 59, Issue 9; Other Information: PBD: May 1999
- Country of Publication:
- United States
- Language:
- English
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