Phenomenology of the simplest linear seesaw mechanism

Abstract

The linear seesaw mechanism provides a simple way to generate neutrino masses. In addition to Standard Model particles, it includes quasi-Dirac leptons as neutrino mass mediators, and a leptophilic scalar doublet seeding small neutrino masses. Here we review its associated physics, including restrictions from theory and phenomenology. The model yields potentially detectable $\mu \to e\gamma$ rates as well as distinctive signatures in the production and decay of heavy neutrinos ($N_i$) and the charged Higgs boson ($H^{\pm }$) arising from the second scalar doublet. We have found that production processes such as $e^{+}{e}^{-}\to NN$, $e^{-}\gamma \to N{H}^{-}$ and $e^{+}{e}^{-}\to H^{+}{H}^{-}$ followed by the decay chain $H^{\pm }\to {\ell }_i^{\pm }N$, $N\to {\ell }_j^{\pm }{W}^{\mp }$ leads to striking lepton number violation signatures at high energies which may probe the Majorana nature of neutrinos.

arXiv comment53 pages, 33 figures, 2 tables, Matches published version

References in corpus (48)

• Theory and phenomenology of two-Higgs-doublet models
• Oscillating neutrinos and mu --> e, gamma
• The Search for Heavy Majorana Neutrinos
• 2020 Global reassessment of the neutrino oscillation picture
• 2HDMC - Two-Higgs-Doublet Model Calculator
• Novel Supersymmetric SO(10) Seesaw Mechanism
• Flavour-Violating Charged Lepton Decays in Seesaw-Type Models
• Effects of new leptons in Electroweak Precision Data
• Observing the Dark Scalar Doublet and its Impact on the Standard-Model Higgs Boson at Colliders
• Dynamical Left-Right Symmetry Breaking
• Significant Gamma Lines from Inert Higgs Dark Matter
• General formulae for f1 --> f2 gamma
• Left-Right Symmetry Breaking in NJL Approach
• Enhanced lepton flavour violation in the supersymmetric inverse seesaw model
• The Present and Future Status of Heavy Neutral Leptons
• Testing sterile neutrino extensions of the Standard Model at future lepton colliders
• Heavy Neutrinos and Lepton Flavour Violation in Left-Right Symmetric Models at the LHC
• The low-scale approach to neutrino masses
• Prospects of Heavy Neutrino Searches at Future Lepton Colliders
• Enhanced mu-e conversion in nuclei in the inverse seesaw model
• Lepton flavor violation and non-unitary lepton mixing in low-scale type-I seesaw
• Indirect searches for sterile neutrinos at a high-luminosity Z-factory
• Scalar sector of Two-Higgs-Doublet models: A mini-review
• Electroweak Precision Fit and New Physics in light of $W$ Boson Mass
• Heavy Neutrinos in displaced vertex searches at the LHC and HL-LHC
• $\mu -e$ conversion in nuclei within the CMSSM seesaw: universality versus non-universality
• Probing right handed neutrinos at the LHeC and lepton colliders using fat jet signatures
• Quasi-Dirac neutrinos at the LHC
• Sensitivity of Lepton Number Violating Meson Decays in Different Experiments
• General parametrization of Majorana neutrino mass models
• Is charged lepton flavour violation a high energy phenomenon?
• Enhancement of h --> gamma gamma in the Two Higgs Doublet Model Type I
• Impact of sterile neutrinos on nuclear-assisted cLFV processes
• Flavour in heavy neutrino searches at the LHC
• Heavy Neutral Leptons at Muon Colliders
• Heavy Neutrino Search via the Higgs boson at the LHC
• Master Majorana neutrino mass parametrization
• Master Majorana neutrino mass parametrization
• Heavy neutrinos at future linear e${}^{+}$e${}^{-}$ colliders
• Status of gamma-gamma, gamma-electron colliders
• Studies for a Photon Collider at the ILC
• Long-lived heavy neutral leptons with a displaced shower signature at CMS
• Distinguishing Dirac and Majorana Heavy Neutrinos at Lepton Colliders
• Simulating lepton number violation induced by heavy neutrino-antineutrino oscillations at colliders
• Testing electroweak scale seesaw models at $e^{-}\gamma$ and $\gamma \gamma$ colliders
• Heavy Neutrino-Antineutrino Oscillations in Quantum Field Theory
• W-mass Anomaly in the Simplest Linear Seesaw Mechanism
• Electroweak Breaking and Higgs Boson Profile in the Simplest Linear Seesaw Model

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• Leptonic neutral-current probes in a short-distance DUNE-like setup
• Dark matter as the source of neutrino mass: theory overview and experimental prospects
• Search for sub-GeV Scalars in $e^{+}{e}^{-}$ collisions
• $A_5$ symmetry and deviation from Golden Ratio mixing with charged lepton flavor violation
• Holographic origin of $a$-maximization and higher-derivative AdS${}_5$/CFT${}_4$
• Search for Sterile Neutrinos with CUPID-0
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