Anarchic neutrinos from flavor deconstruction: phenomenology of the lepton sector

2025/10/27 by Isidori, Gino, Paradisi, Paride, Sainaghi, Andrea +1 · 1 citation
#FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.2510.23703

Abstract

We investigate the neutrino sector in the framework of flavor deconstruction with an inverse-seesaw realization. This setup naturally links the hierarchical charged-fermion masses to the anarchic pattern of light-neutrino mixing. We determine the viable parameter space consistent with oscillation data and study the phenomenology of heavy neutral leptons (HNL) and lepton-flavor-violating (LFV) processes. Current bounds from direct HNL searches and LFV decays constrain the right-handed neutrino scale to a few TeV, while future μ→ e experiments will probe most of the region with Λ\lesssim 10~TeV. Among possible realizations, models deconstructing SU(2)_L × U(1)_B-L or SU(2)_L × U(1)_R × U(1)_B-L are those allowing the lowest deconstruction scale.

Citations

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Cited by

• Implications of Flavor Symmetries for Baryon Number Violation

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• Leptogenesis: Neutrinos and New Lepton Flavor Violation at the Tev Energy Scale
• Determining neutrino mass hierarchy in an extended Left-Right model
• Deconstruction and Bilarge Neutrino Mixing