Three Dirac neutrinos

Joshipura, Anjan S. ; Rindani, Saurabh D. (1991) Three Dirac neutrinos Physical Review D - Particles, Fields, Gravitation and Cosmology, 44 (1). R22-R25. ISSN 1550-7998

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The consequences of imposing an exact Le+Lτ−Lμ symmetry on a 6×6 matrix describing neutrino masses are discussed. The presence of right-handed neutrinos avoids the need of introducing any SU(2) Higgs triplet. Hence the conflict with the CERN LEP data on the Z width found in earlier models with Le+Lτ−Lμ symmetry is avoided. The Le+Lτ−Lμ symmetry provides an interesting realization of a recent proposal of Glashow to accommodate the 17-keV Dirac neutrino in the SU(2)×U(1) theory. All the neutrinos in this model are Dirac particles. The solar-neutrino problem can be solved in an extension of the model which generates a large (~10−11 μB) magnetic moment for the electron neutrino.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:43605
Deposited On:14 Jun 2011 10:15
Last Modified:11 Jul 2012 05:13

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