Zee model in a non-holomorphic modular A₄ symmetry

2024/12/24 by Takaaki Nomura, Nomura, Takaaki, Hiroshi Okada +1 · 6 citations
Mathematics · Physics and Astronomy · #Algebraic structures and combinatorial models #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Nonlinear Waves and Solitons

paper · pdf · doi:10.48550/arxiv.2412.18095

openalex publication_date 2024/12/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We study a Zee model in a non-holomorphic modular A₄ flavor symmetry in which we find good predictions in both the cases of normal and inverted hierarchy. Parameter reduction on neutrino sector occurs due to large mass hierarchies between charged-leptons mass eigenvalues and new singly-charged bosons in addition to this flavor symmetry. As a result, we have two complex free parameters including modulus τ. We show several predictions in terms of verifiable observables such as Dirac CP, Majorana phases, sum of the neutrino masses, and the effective mass for neutrino double beta decay in addition to demonstrating allowed regions for our input parameters.

Cited by

• A Predictive Non-Holomorphic Modular A₄ Linear Seesaw Framework Testable at DUNE
• Minimal lepton models with non-holomorphic modular A₄ symmetry
• Non-Holomorphic A₄ Modular Symmetry in Type-I Seesaw: Implications for Neutrino Masses and Leptogenesis
• The Seesaw Evaded Modular Dirac Framework
• Neutrino phenomenology and Dark matter in a left-right asymmetric model with non-holomorphic modular A₄ group
• Type-III Seesaw in Non-Holomorphic Modular Symmetry and Leptogenesis

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