Abstract
We propose a leptoquark model with two scalar leptoquarks \( {S}_1\left(\overline{3},1,\frac{1}{3}\right) \) and \( {\tilde{R}}_2\left(3,2,\frac{1}{6}\right) \) to give a combined explanation of neutrino masses, lepton flavor mixing and the anomaly of muon g − 2, satisfying the constraints from the radiative decays of charged leptons. The neutrino masses are generated via one-loop corrections resulting from a mixing between S1 and \( {\tilde{R}}_2 \). With a set of specific textures for the leptoquark Yukawa coupling matrices, the neutrino mass matrix possesses an approximate μ-τ reflection symmetry with (Mν)ee = 0 only in favor of the normal neutrino mass ordering. We show that this model can successfully explain the anomaly of muon g − 2 and current experimental neutrino oscillation data under the constraints from the radiative decays of charged leptons.
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Zhang, D. Radiative neutrino masses, lepton flavor mixing and muon g − 2 in a leptoquark model. J. High Energ. Phys. 2021, 69 (2021). https://doi.org/10.1007/JHEP07(2021)069
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DOI: https://doi.org/10.1007/JHEP07(2021)069