A radiative seesaw model with three Higgs doublets in modular $A_4$ symmetry

Abstract

We propose a radiative seesaw model based on a modular $A_4$ symmetry, which has good predictability in the lepton sector. We execute a numerical analysis to search for parameters that satisfy the experimental constraints such as those from neutrino oscillation data and lepton flavor violations. Then, we present several predictions in our model that originate from the modular symmetry at a fixed point as well as fundamental region of $\tau$.

arXiv comment19 pages, 2 tables, 6 figures; version accepted for publication in Nuclear Physics B, discussions on LFVs and fixed point at tau=i are added

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• Electron EDM arising from modulus $\tau$ in the supersymmetric modular invariant flavor models
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