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Fits to Non-Supersymmetric SO(10) Models with Type I and II Seesaw Mechanisms Using Renormalization Group Evolution

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arxiv 1903.08241 v2 pith:4TBN3SUE submitted 2019-03-19 hep-ph

Tommy Ohlsson , Marcus Pernow This is my paper · ORCID
classification hep-ph
keywords fitsmassseesawneutrinotype-icombinationfindgenerated
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We consider numerical fits to non-supersymmetric $\mathrm{SO}(10)$-based models in which neutrino mass is generated by the type-I or type-II seesaw mechanism or a combination of both. The fits are performed with a sophisticated top-down procedure, taking into account the renormalization group equations of the gauge and Yukawa couplings, integrating out relevant degrees of freedom at their corresponding mass scales, and using recent data for the Standard Model observables. We find acceptable fits for normal neutrino mass ordering only and with neutrino mass generated by either type-I seesaw only or a combination of types I and II seesaw in which type-I seesaw is dominant. Furthermore, we find predictions from the best fit regarding the small neutrino masses, the effective neutrinoless double beta decay mass, and the leptonic CP-violating phase. Finally, we show that the fits are rather insensitive to the chosen value of the unification scale.

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Forward citations

Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. OpenAlex reports about 33 citations worldwide. Full citation record

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    hep-ph 2024-11 conditional novelty 6.0 of 10

    In minimal SO(10) with spontaneous CP violation, flavor-changing neutral currents and proton decay branching ratios are correlated through one mixing matrix, yielding a testable relation among future low-energy measurements.

  4. Fermion masses and mixings in supersymmetric SO(10) with third-generation quasi-Yukawa unification

    hep-ph 2025-06 conditional novelty 5.0 of 10

    A supersymmetric SO(10) fit with a new dimension-six operator reproduces fermion masses and mixings (chi^2 = 8.8) and yields quasi-Yukawa unification y_t approx y_b approx 0.73 y_tau.

  5. Probing quark-lepton correlation in GUTs with high-precision neutrino measurements

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    In SO(10) GUT fits with JUNO data, normal neutrino mass ordering is favored and the models predict distinct CP-violation, double-beta-decay, and right-handed-neutrino mass signatures.

  6. Thermal leptogenesis in minimal unified models

    hep-ph 2025-06 conditional novelty 4.0 of 10

    Thermal leptogenesis in minimal flipped SU(5) and SO(10) models tightly constrains their flavour parameters, yielding a lightest-neutrino mass below 0.03 eV and a B-L breaking scale near 10^12.5 GeV.

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