Hierarchical Quark and Lepton Masses with Sequential U(1) Gauge Symmetry
arXiv:2101.04286 · doi:10.1016/j.physletb.2021.136145
Abstract
Instead of right-handed neutrino singlets, the standard model is extended to include lepton triplets . Each quark and lepton family may now transform under an anomaly-free gauge symmetry, known already for many years. A new sequential application is presented, using just the one Higgs doublet of the standard model, together with two Higgs singlets. The resulting structure has hierarchical quark and lepton masses, as well as a viable seesaw neutrino mass matrix.
arXiv comment8 pages, 1 figure
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