Radiative Neutrino Mass Generation through Vector-like Quarks

Abstract

A new model of radiative neutrino masses generated via two-loop diagrams is proposed involving a charge 2/3 vector-like quark and a doublet of leptoquark scalars. This model predicts one of the neutrinos to be massless and admits both the normal and inverted neutrino mass hierarchies with correlated predictions for l_i \rightarrow l_j + γbranching ratios. New contributions to CP violation in B_s-\bar{B}_s mixing arise in the model through leptoquark box diagrams, which can explain the anomalous dimuon events reported by the DO collaboration. These leptoquarks, with masses below 500 GeV, also provide a natural resolution to the apparent discrepancy in the measured values of the CP violation parameters \sin2βand ε_K.

23 pages, latex

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Cited by in corpus (23)

• From the trees to the forest: a review of radiative neutrino mass models
• Neutrino Non-Standard Interactions: A Status Report
• Non-Standard Interactions in Radiative Neutrino Mass Models
• Systematic classification of two-loop realizations of the Weinberg operator
• Interpretation of the diphoton excess at CMS and ATLAS
• Origin of neutrino masses at the LHC: Delta L = 2 effective operators and their ultraviolet completions
• Unified Framework for $B$-Anomalies, Muon $g-2$, and Neutrino Masses
• General parametrization of Majorana neutrino mass models
• Testing Radiative Neutrino Mass Models at the LHC
• Testable two-loop radiative neutrino mass model based on an $LLQ{d}^{c}Q{d}^c$ effective operator
• Double beta decay and neutrino mass models
• Neutrino Catalyzed Diphoton Excess
• Scalar leptoquarks and Higgs pair production at the LHC
• Probing Neutrino Mass Models through Resonances at Neutrino Telescopes
• The Simplest Models of Radiative Neutrino Mass: Excluding Simplified Zee Models and Beyond
• Mirror symmetry: from active and sterile neutrino masses to baryonic and dark matter asymmetries
• Soft See-Saw: Radiative Origin of Neutrino Masses in SUSY Theories
• Neutrinoless double $\beta$ decay with small neutrino masses
• Texture Zero Neutrino Models and Their Connection with Resonant Leptogenesis
• Neutrino Mass Matrices from Two Zero 3x2 Yukawa Textures and Minimal d=5 Entries
• Type-3/2 Seesaw Mechanism
• Searching for radiative neutrino mass generation at the LHC
• Search for single production of vector-like quarks decaying into $W(\ell \nu )b$ in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector