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arXiv · 2107.04042

Two A4 modular symmetries for Tri-Maximal 2 mixing

Ivo de Medeiros Varzielas·João Lourenço
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Abstract

We construct lepton flavour models based on two $A_4$ modular symmetries. The two $A_4$ are broken by a bi-triplet field to the diagonal $A_4$ subgroup, resulting in an effective modular $A_4$ flavour symmetry with two moduli. We employ these moduli as stabilisers, that preserve distinct residual symmetries, enabling us to obtain Tri-Maximal 2 (TM2) mixing with a minimal field content (without flavons).

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Ivo de Medeiros Varzielas, João Lourenço. 2021-07-08. Two A4 modular symmetries for Tri-Maximal 2 mixing. https://doi.org/10.1016/j.nuclphysb.2022.115793

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