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Neutrino seesaw models at one-loop matching: Discrimination by effective operators

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arxiv 2201.04646 v2 pith:HXGBLKZC submitted 2022-01-12 hep-ph

Yong Du , Xu-Xiang Li , Jiang-Hao Yu This is my paper · ORCID
classification hep-ph
keywords modelsseesawdiscriminationmatchingone-loopoperatorsbreakingdifferent
verification ladder T0 review T1 audit T2 compute T3 formal
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Using the functional method, one-loop matching of the type-I, -II and -III seesaw models are investigated and the results are presented in both the Green's and the Warsaw bases. Although these models generate the same dimension-5 Weinberg operator, they could induce quite different types of dimension-6 effective operators that can be utilized for model discrimination. We also find the threshold effects from one-loop matching could be significant, which turn out to allow triggering electroweak symmetry breaking radiatively in type-II seesaw while forbid that in type-I/-III models. An analytical criterion for such radiative symmetry breaking is also derived in type-II seesaw. Finally, we investigate the indirect signatures from different types of dimension-6 operators at high-energy colliders, low-energy precision experiments and forward physics facilities for model discrimination.

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Cited by 3 Pith papers

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

  1. A HEFT Perspective on the Type-II Seesaw Model and the Complete Basis of Lepton-Number-Violating Operators

    hep-ph 2026-07 accept novelty 8.0 of 10

    First complete tree-level HEFT matching of the type-II seesaw and a Hilbert-series-checked, flavor-complete basis of lepton-number-violating HEFT operators through O(p^4).

  2. Running of neutrino mass parameters in the Zee model

    hep-ph 2025-12 conditional novelty 6.0 of 10

    In the Zee model, one-loop EFT running—not direct matching—generates the neutrino mass matrix, and 1% variations in fitted high-scale couplings shift neutrino observables beyond next-generation experimental precision.

  3. Electroweak Scalar Effects Beyond Dimension-6 in SMEFT

    hep-ph 2025-01 conditional novelty 6.0 of 10

    One-loop dimension-eight SMEFT matching is derived for complex triplet and two-Higgs-doublet scalar extensions, and the dimension-eight terms are shown to matter for GigaZ electroweak precision projections.

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