Tree level Majorana neutrino mass from Type-1 $\times$ Type-2 Seesaw mechanism with Dark Matter

Abstract

We propose a type of hybrid Seesaw model that combines Type-1 and Type-2 Seesaw mechanism in multiplicative way to generate tree level Majorana neutrino mass and provides a Dark Matter candidate. The model extends the Standard Model by extra gauge symmetry $U(1{)}_D$ and hidden sector consisted of chiral fermions and additional scalar fields. After spontaneous symmetry breaking, light neutrino masses are generated not only by exchange of the new heavy fermions as Type-1 Seesaw, but also by coupling to the naturally small induced vacuum expectation value of new heavy scalar as Type-2 Seesaw. An unbroken residue of $U(1{)}_D$ protects the lightest Dirac fermion required by anomaly cancellation in hidden sector from decaying, therefore giving rise to a Dark Matter candidate. Due to strong enough Seesaw suppression from our hybridization, new physics scale can be as low as TeV in this model and discovering signal from LHC data is possible in near future.

arXiv comment11 pages, 2 figures, 1 table; v2: minor revision and typo fixing. Accepted version

References in corpus (25)

• Verifiable Radiative Seesaw Mechanism of Neutrino Mass and Dark Matter
• Minimal Dark Matter
• A lower bound on the right-handed neutrino mass from leptogenesis
• The Waning of the WIMP? A Review of Models, Searches, and Constraints
• Towards a complete theory of thermal leptogenesis in the SM and MSSM
• Sterile Neutrino Dark Matter
• A Model for Neutrino Masses and Dark Matter
• TikZ-Feynman: Feynman diagrams with TikZ
• New Mechanism for Neutrino Mass Generation and Triply Charged Higgs Bosons at the LHC
• Probing the scotogenic model with lepton flavor violating processes
• TeV-scale Seesaw with Quintuplet Fermions
• Anomaly-Free Sets of Fermions
• Indirect Detection of Neutrino Portal Dark Matter
• Novel TeV-scale seesaw mechanism with Dirac mediators
• Type-I Seesaw as the Common Origin of Neutrino Mass, Baryon Asymmetry, and the Electroweak Scale
• Interplay of type I and type II seesaw contributions to neutrino mass
• Search for dark matter produced in association with a Standard Model Higgs boson decaying into $b$-quarks using the full Run 2 dataset from the ATLAS detector
• A Compromise between Neutrino Masses and Collider Signatures in the Type-II Seesaw Model
• Cascade Seesaw for Tiny Neutrino Mass
• Number-Theory Dark Matter
• Search for lepton flavour violating muon decay mediated by a new light particle in the MEG experiment
• Sterile Neutrinos and Global Symmetries
• Neutrinophilic two Higgs doublet model with dark matter under an alternative $U(1{)}_{B-L}$ gauge symmetry
• Imperfect Mirrors of the Standard Model
• Anomaly-free chiral $U(1{)}_D$ and its scotogenic implication

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