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A Modular SU(5) Littlest Seesaw

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arxiv 2309.15901 v1 pith:KXCN4TCJ submitted 2023-09-27 hep-ph

A Modular SU(5) Littlest Seesaw

classification hep-ph
keywords modularlittlestquarkseesawhierarchicalmassesmixingmodel
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We extend the littlest modular seesaw to a Grand Unified scenario based on $SU(5)$ endowed with three modular $S_4$ symmetries. We leverage symmetry protected zeroes in the leptonic and down quark sectors to suppress deviations to the littlest modular seesaw predictions, but not contributions to the quark mixing. The model is supplemented by two weighton fields, such that the hierarchical nature of the charged-lepton masses, as well as the quark masses and mixing, stem from the content and symmetries of the model, rather than a hierarchical nature of the Yukawa coefficients.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Lepton mixing from the $\Delta(96)$ Modular Littlest Seesaw

    hep-ph 2026-07 conditional novelty 6.0

    An exhaustive scan of Δ(96) Modular Littlest Seesaw models yields 35 viable residual-symmetry patterns with new fixed PMNS columns and sharp, testable predictions beyond TM1.

  2. Two-loop neutrino mass model with modular $S_4$ symmetry

    hep-ph 2026-05 unverdicted novelty 6.0

    A two-loop neutrino mass model with modular S4 and Z3 symmetries reproduces charged lepton masses and normal-ordering neutrino data while predicting observable LFV and viable DM candidates.

  3. Torsional four-fermion interaction for Majorana neutrinos

    hep-ph 2026-06 unverdicted novelty 4.0

    Torsion-induced four-fermion interactions modify effective masses and mixing parameters for Majorana neutrinos with sterile partners in matter.