A chiral SU(3)_f gauge theory strongly coupled at high scale generates Majorana masses for right-handed neutrinos and Dirac masses for SM fermions, dynamically breaking flavor and electroweak symmetries to produce composite states and calculable neutrino masses via seesaw.
Dynamical Origin of Seesaw
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abstract
In anomaly free gauged three-flavor SU(3)_f x SU(2)_L x U(1)_Y model of Yanagida with fermion and gauge boson masses described by conveniently chosen elementary scalar Higgs fields the neutrino mass matrix comes out in the seesaw form. Following Yanagida's suggestion we demonstrate that no Higgs fields are needed. Strong flavor gluon interactions themselves, treated in a separable approximation, result in universally split lepton and quark masses calculated in terms of a few parameters. While the realistic splitting of charged lepton and quark masses requires the electroweak and QCD radiative corrections the neutrino seesaw mass matrix comes out exact.
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hep-ph 1years
2026 1verdicts
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Model of Flavors
A chiral SU(3)_f gauge theory strongly coupled at high scale generates Majorana masses for right-handed neutrinos and Dirac masses for SM fermions, dynamically breaking flavor and electroweak symmetries to produce composite states and calculable neutrino masses via seesaw.