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Neutrino masses in the effective rank-5 subgroups of E-6. II. Supersymmetric case
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Date
2005-06-01
Author
Frank, M
Sher, M
Turan, İsmail
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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We present a complete analysis of the neutral fermion sector of supersymmetric E-6-inspired low-energy models containing an extra SU(2), concentrating on the alternative left-right and inert models. We show that the R-parity conserving scenario always exhibits a large Dirac mass for nu(L) with maximal mixing with an isosinglet neutrino, and that R-parity violating scenarios do not change the picture other than allowing further mixing with another isosinglet. In order to recover standard model phenomenology, additional assumptions in the form of discrete symmetries and/or new interactions are needed. We introduce and investigate the discrete symmetry method and higher-dimensional operators as mechanisms for solving the neutrino mass and mixing problems in these models.
Subject Keywords
Beyond the Standard Model
,
SUSY
,
Neutrinos
,
GUT
URI
https://hdl.handle.net/11511/32719
Journal
PHYSICAL REVIEW D
DOI
https://doi.org/10.1103/physrevd.71.113002
Collections
Department of Physics, Article