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arxiv 1804.04560 v2 pith:3HZP67SD submitted 2018-04-12 hep-ph

Running of Fermion Observables in Non-Supersymmetric SO(10) Models

Tommy Ohlsson , Marcus Pernow This is my paper
classification hep-ph
keywords observablesbreakingfermiongroupintermediatemeasuredmodelmodels
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We investigate the complete renormalization group running of fermion observables in two different realistic non-supersymmetric models based on the gauge group $\textrm{SO}(10)$ with intermediate symmetry breaking for both normal and inverted neutrino mass orderings. Contrary to results of previous works, we find that the model with the more minimal Yukawa sector of the Lagrangian fails to reproduce the measured values of observables at the electroweak scale, whereas the model with the more extended Yukawa sector can do so if the neutrino masses have normal ordering. The difficulty in finding acceptable fits to measured data is a result of the added complexity from the effect of an intermediate symmetry breaking as well as tension in the value of the leptonic mixing angle $\theta^\ell_{23}$.

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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. Towards Precision Neutrino Fits in GUTs: Relevance of One-Loop Finite Corrections

    hep-ph 2026-05 unverdicted novelty 6.0

    One-loop corrections in minimal SO(10) GUTs cause 30-40% shifts in neutrino observables from tree-level fits, requiring their inclusion for reliable parameter space exploration.

  2. Reality-constrained Minimal Yukawa Structure in SO(10) GUT

    hep-ph 2026-04 conditional novelty 5.0

    Corrected reality conditions on the 10 and 120 Higgs representations in minimal SO(10) allow the Yukawa sector to fit all fermion masses and mixings while predicting a hierarchical right-handed neutrino spectrum and p...

  3. Good flavor search in SU(5): a machine learning approach

    hep-ph 2025-11 unverdicted novelty 4.0

    Machine learning optimization of a generalized SU(5) parameter y finds y ≈ 0.8 produces the closest match to the original model while resolving the fermion mass discrepancy.