The Singly-Charged Scalar Singlet as the Origin of Neutrino Masses

Abstract

We consider the generation of neutrino masses via a singly-charged scalar singlet. Under general assumptions we identify two distinct structures for the neutrino mass matrix. This yields a constraint for the antisymmetric Yukawa coupling of the singly-charged scalar singlet to two left-handed lepton doublets, irrespective of how the breaking of lepton-number conservation is achieved. The constraint disfavours large hierarchies among the Yukawa couplings. We study the implications for the phenomenology of lepton-flavour universality, measurements of the $W$-boson mass, flavour violation in the charged-lepton sector and decays of the singly-charged scalar singlet. We also discuss the parameter space that can address the Cabibbo Angle Anomaly.

arXiv comment38 pages, 12 figures, 2 tables, published in JHEP, references added, minor clarifications added

References in corpus (69)

• Oscillating neutrinos and mu --> e, gamma
• The anomalous magnetic moment of the muon in the Standard Model
• The fate of hints: updated global analysis of three-flavor neutrino oscillations
• New Measurement of the Electron Magnetic Moment and the Fine Structure Constant
• Measurement of the fine-structure constant as a test of the Standard Model
• Global analysis of three-flavour neutrino oscillations: synergies and tensions in the determination of theta_23, delta_CP, and the mass ordering
• FLAG Review 2019
• Muon Decay and Physics Beyond the Standard Model
• Pathways to Naturally Small Neutrino Masses
• The Standard Model as an Effective Field Theory
• Two-component spinor techniques and Feynman rules for quantum field theory and supersymmetry
• Search for Lepton Flavor Violating Tau Decays into Three Leptons with 719 Million Produced Tau+Tau- Pairs
• Detailed calculation of lepton flavor violating muon-electron conversion rate for various nuclei
• Cavity Control of a Single-Electron Quantum Cyclotron:\\Measuring the Electron Magnetic Moment
• From the trees to the forest: a review of radiative neutrino mass models
• A Model for Neutrino Masses and Dark Matter
• Precision Tau Physics
• Classification of Effective Neutrino Mass Operators
• Systematic study of the d=5 Weinberg operator at one-loop order
• Predictive Model for Radiatively Induced Neutrino Masses and Mixings with Dark Matter
• Dispersive Evaluation of the Inner Radiative Correction in Neutron and Nuclear $\beta$-decay
• A Survey of Lepton Number Violation Via Effective Operators
• Lepton Flavor Violation in the Standard Model with general Dimension-Six Operators
• The CKM unitarity problem: A trace of new physics at the TeV scale?
• Two-loop Neutrino Mass Generation and its Experimental Consequences
• The low-scale approach to neutrino masses
• Prospects for the Zee-Babu Model at the LHC and low energy experiments
• Joint lattice QCD - dispersion theory analysis confirms the quark-mixing top-row unitarity deficit
• Neutrino masses from higher than d=5 effective operators
• Towards consistent Electroweak Precision Data constraints in the SMEFT
• Global Fit to Modified Neutrino Couplings and the Cabibbo-Angle Anomaly
• Systematic classification of two-loop realizations of the Weinberg operator
• Beta decays as sensitive probes of lepton flavor universality
• One-loop Effective Lagrangian for a Standard Model with a Heavy Charged Scalar Singlet
• Models with radiative neutrino masses and viable dark matter candidates
• Global Electroweak Fit and Vector-Like Leptons in Light of the Cabibbo Angle Anomaly
• The Zee-Babu Model revisited in the light of new data
• Getting chirality right: single scalar leptoquark solutions to the $(g-2{)}_{e,\mu }$ puzzle
• A Class of Inert N-tuplet Models with Radiative Neutrino Mass and Dark Matter
• A Three-Loop Model of Neutrino Mass with Dark Matter
• Origin of neutrino masses at the LHC: Delta L = 2 effective operators and their ultraviolet completions
• On the Origin of Neutrino Masses
• Full parameter scan of the Zee model: exploring Higgs lepton flavor violation
• Cabibbo anomaly versus electroweak precision tests: An exploration of extensions of the Standard Model
• Explaining $b\to s{\ell }^{+}{\ell }^{-}$ and the Cabibbo Angle Anomaly with a Vector Triplet
• Effective Lagrangian approach to neutrinoless double beta decay and neutrino masses
• Searching for Lepton Flavour (Universality) Violation and Collider Signals from a Singly-Charged Scalar Singlet
• Non-standard neutrino interactions in the Zee-Babu model
• General parametrization of Majorana neutrino mass models
• A Class of Three-Loop Models with Neutrino Mass and Dark Matter
• Testing Radiative Neutrino Mass Models at the LHC
• Neutrino Masses, Grand Unification, and Baryon Number Violation
• Recipes and Ingredients for Neutrino Mass at Loop Level
• Master Majorana neutrino mass parametrization
• Master Majorana neutrino mass parametrization
• Muon $g-2$ and CKM Unitarity in Extra Lepton Models
• Physics with near detectors at a neutrino factory
• High-dimensional neutrino masses
• Loop neutrino masses from d=7 operator
• Exploding operators for Majorana neutrino masses and beyond
• Implications of Recent Data on Neutrino Mixing and Lepton Flavour Violating Decays for the Zee Model
• Zee-Babu type model with $U(1{)}_{L_{\mu }-L_{\tau }}$ gauge symmetry
• Searching for Weak Singlet Charged Scalar at the Large Hadron Collider
• Neutrino mass models: New classification and model-independent upper limits on their scale
• Minimal Radiative Neutrino Masses
• Charged scalars confronting neutrino mass and muon g-2 anomaly
• Neutrino Mass from a d=7 Effective Operator in a SUSY-GUT Framework
• Probing the Origin of Neutrino Masses and Mixings via Doubly Charged Scalars: Complementarity of the Intensity and the Energy Frontiers
• Lepton number violating operators with standard model gauge fields: A survey of neutrino masses from 3-loops and their link to dark matter

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