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<p>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 <i>μ</i> → <i>e</i> experiments will probe most of the region with Λ ≲ 10 TeV. Among possible realizations, models deconstructing SU(2)<sub>L</sub> × U(1)<sub>B<i>−</i>L</sub> or SU(2)<sub>L</sub> × U(1)<sub>R</sub> × U(1)<sub>B<i>−</i>L</sub> are those allowing the lowest deconstruction scale.</p>

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Anarchic neutrinos from flavor deconstruction: phenomenology of the lepton sector

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年2月13日

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  • Gino Isidori,
  • Paride Paradisi,
  • Andrea Sainaghi,
  • Nudžeim Selimović

摘要

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 ≲ 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.