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Lepton flavor violation and non-unitary lepton mixing in low-scale type-I seesaw

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arxiv 1107.6009 v2 pith:AY3JWKX5 submitted 2011-07-29 hep-ph

D. V. Forero , S. Morisi , M. Tortola , J. W. F. Valle This is my paper · ORCID
classification hep-ph
keywords leptonseesawflavorlow-scalemixingneutrinosizeableviolation
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Within low-scale seesaw mechanisms, such as the inverse and linear seesaw, one expects (i) potentially large lepton flavor violation (LFV) and (ii) sizeable non-standard neutrino interactions (NSI). We consider the interplay between the magnitude of non-unitarity effects in the lepton mixing matrix, and the constraints that follow from LFV searches in the laboratory. We find that NSI parameters can be sizeable, up to percent level in some cases, while LFV rates, such as that for \mu -> e \gamma, lie within current limits, including the recent one set by the MEG collaboration. As a result the upcoming long baseline neutrino experiments offer a window of opportunity for complementary LFV and weak universality tests.

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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. Testing the unitarity of the light neutrino mixing matrix

    hep-ph 2026-03 conditional novelty 5.0 of 10

    PMNS non-unitarity would make W+W- production cross sections grow anomalously with energy; LEP data already bound δ_e ≲ 0.0135 and future colliders could reach ~10^-5.

  2. Electroweak Breaking and Higgs Boson Profile in the Simplest Linear Seesaw Model

    hep-ph 2019-08 conditional novelty 5.0 of 10

    In the simplest linear seesaw model, astrophysical, unitarity, and LHC constraints force a compressed scalar spectrum and permit the 125 GeV Higgs to decay invisibly into majorons with branching ratios up to about 20%.

  3. Neutrino mass genesis in Scoto-Inverse Seesaw with Modular $A_4$

    hep-ph 2024-11 reject novelty 4.0 of 10

    The modular A4 scotogenic inverse seesaw model can fit normal-ordering neutrino data with a TeV-scale fermion dark matter candidate, but the stated parameter choice m_etaR = m_etaI makes the radiative neutrino mass vanish.

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