Fermion Dark Matter and Radiative Neutrino Masses from Spontaneous Lepton Number Breaking

Abstract

In this paper, we study the viability of having a fermion Dark Matter particle below the TeV mass scale in connection to the neutrino mass generation mechanism. The simplest realization is achieved within the scotogenic model where neutrino masses are generated at the 1-loop level. Hence, we consider the case where the dark matter particle is the lightest ${\mathbb{Z}}_2$-odd Majorana fermion running in the neutrino mass loop. We assume that lepton number is broken dynamically due to a lepton number carrier scalar singlet which acquires a non-zero vacuum expectation value. In the present scenario the Dark Matter particles can annihilate via $t$- and $s$-channels. The latter arises from the mixing between the new scalar singlet and the Higgs doublet. We identify three different Dark Matter mass regions below 1 TeV that can account for the right amount of dark matter abundance in agreement with current experimental constraints. We compute the Dark Matter-nucleon spin-independent scattering cross-section and find that the model predicts spin-independent cross-sections ``naturally'' dwelling below the current limit on direct detection searches of Dark Matter particles reported by XENON1T.

arXiv comment15 pages, 4 figures, 4 tables

References in corpus (40)

• Dark Matter Search Results from a One Tonne$\times$Year Exposure of XENON1T
• Verifiable Radiative Seesaw Mechanism of Neutrino Mass and Dark Matter
• Combined Measurement of the Higgs Boson Mass in $pp$ Collisions at $\sqrt{s}=7$ and 8 TeV with the ATLAS and CMS Experiments
• Letter of Intent for KM3NeT 2.0
• Global analysis of three-flavour neutrino oscillations: synergies and tensions in the determination of theta_23, delta_CP, and the mass ordering
• micrOMEGAs: A program for calculating the relic density in the MSSM
• ANTARES: the first undersea neutrino telescope
• Status of neutrino oscillations 2018: first hint for normal mass ordering and improved CP sensitivity
• DarkSide-20k: A 20 Tonne Two-Phase LAr TPC for Direct Dark Matter Detection at LNGS
• Physics reach of the XENON1T dark matter experiment
• Unveiling $\nu$ secrets with cosmological data: neutrino masses and mass hierarchy
• The oblique parameters in multi-Higgs-doublet models
• DARWIN: towards the ultimate dark matter detector
• A precision constraint on multi-Higgs-doublet models
• Neutrino masses and mixings: Status of known and unknown $3\nu$ parameters
• Inert Doublet Model and LEP II Limits
• Search for Gamma-ray Spectral Lines with the Fermi Large Area Telescope and Dark Matter Implications
• Lepton Flavor Violation in the Scotogenic Model
• Cold Dark Matter, Radiative Neutrino Mass, mu to e gamma, and Neutrinoless Double Beta Decay
• Anatomy of the Inert Two Higgs Doublet Model in the light of the LHC and non-LHC Dark Matter Searches
• IceCube: An Instrument for Neutrino Astronomy
• Top-pair production and decay at NLO matched with parton showers
• First combined analysis of neutrino and antineutrino oscillations at T2K
• Dark matter direct search sensitivity of the PandaX-4T experiment
• Probing the scotogenic model with lepton flavor violating processes
• Improved limits on dark matter annihilation in the Sun with the 79-string IceCube detector and implications for supersymmetry
• Neutrino Portals to Dark Matter
• Dark Matter as the signal of Grand Unification
• Direct detection of fermion dark matter in the radiative seesaw model
• Search for charged Higgs bosons in e+e- collisions at energies up to sqrt(s) = 209GeV
• Search for charged Higgs bosons in e+e- collisions at energies up to sqrt(s) = 189GeV
• New Higgs Signatures in Supersymmetry with Spontraneously Broken R Parity"
• Neutrino-Dark Matter Connections in Gauge Theories
• Fermionic WIMPs and Vacuum Stability in the Scotogenic Model
• Update on decaying and annihilating heavy dark matter with the 6-year IceCube HESE data
• Phenomenology of the Generalised Scotogenic Model with Fermionic Dark Matter
• Singlet fermion dark matter and electroweak baryogenesis with radiative neutrino mass
• Neutrino mass and invisible Higgs decays at the LHC
• Neutrino Oscillations with MINOS and MINOS+
• Dynamical generation of neutrino mass scales

Cited by in corpus (11)

• Generalizing the Scotogenic model
• Minimal scoto-seesaw mechanism with spontaneous CP violation
• Flavour and dark matter in a scoto/type-II seesaw model
• Dark matter in the Scotogenic model with spontaneous lepton number violation
• The ScotoSinglet Model: A Scalar Singlet Extension of the Scotogenic Model
• An ultraviolet completion for the Scotogenic model
• Dark Matter perspective of Left-Right symmetric gauge model
• Fermionic Dark Matter in Dynamical Scotogenic Model
• Dark matter for Majorana neutrinos in a ${\mathbb{Z}}_4$ symmetry
• Feasibility to probe the dynamical scotogenic model at the LHC
• Type-III Scotogenic Model: Inflation, Dark Matter and Collider Phenomenology