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Sequentially loop supressed fermion masses from a unique discrete symmetry
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Sequentially loop supressed fermion masses from a unique discrete symmetry
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We propose a systematic and renormalizable sequential loop suppression mechanism to generate the hierarchy of the Standard Model fermion masses from one discrete symmetry. The discrete symmetry is sequentially softly broken in order to generate one-loop level masses for the bottom, charm, tau and muon leptons and two-loop level masses for the lightest Standard Model charged fermions. The tiny masses for the light active neutrinos are produced from radiative type-I seesaw mechanism, where the Dirac mass terms are effectively generated at two-loop level.
Forward citations
Cited by 2 Pith papers
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Classification of minimal models producing b, c and tau masses at one-loop level
A systematic catalogue of 25 minimal radiative mass models for b, c, and τ, including eight 'hybrid' models whose Yukawa couplings can lie above, below, or exactly at the Standard Model prediction.
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Higgs Yukawa coupling constraints on a benchmark one-loop radiative mass model for the bottom, charm and tau
A radiative one-loop mass model for b, c, τ, and ντ remains consistent with current Higgs and EW data, and future Yukawa-precision measurements are projected to tighten, but not close, its viable parameter space.
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