Scalar Dark Matter, GUT baryogenesis and Radiative neutrino mass

Abstract

We investigate an interesting correlation among dark matter phenomenology, neutrino mass generation and GUT baryogenesis, based on the scotogenic model. The model contains additional right-handed neutrinos $N$ and a second Higgs doublet $\Phi$, both of which are odd under an imposed $Z_2$ symmetry. The neutral component of $\Phi$, i.e. the lightest of the $Z_2$-odd particles, is the dark matter candidate. Due to a Yukawa coupling involving $\Phi$, $N$ and the Standard Model leptons, the lepton asymmetry is converted into the dark matter asymmetry so that a non-vanishing $B-L$ asymmetry can arise from $(B-L)$-conserving GUT baryogenesis, leading to a nonzero baryon asymmetry after the sphalerons decouple. On the other hand, $\Phi$ can also generate neutrino masses radiatively. In other words, the existence of $\Phi$ as the dark matter candidate resuscitates GUT baryogenesis and realizes neutrino masses.

16 pages, 6 figures. v2: version accepted by PRD

References in corpus (25)

• Planck 2015 results. XIII. Cosmological parameters
• Dark Matter Search Results from a One Tonne$\times$Year Exposure of XENON1T
• Results from a search for dark matter in the complete LUX exposure
• Dark Matter Results From 54-Ton-Day Exposure of PandaX-II Experiment
• First Dark Matter Search Results from the XENON1T Experiment
• Update on scalar singlet dark matter
• The Sphaleron Rate in the Minimal Standard Model
• Anatomy of the Inert Two Higgs Doublet Model in the light of the LHC and non-LHC Dark Matter Searches
• An Updated Analysis of Inert Higgs Doublet Model in light of the Recent Results from LUX, PLANCK, AMS-02 and LHC
• Inert Doublet Model in light of LHC Run I and astrophysical data
• Inert Doublet Model in the light of LHC and astrophysical data
• Common Origin of Neutrino Mass, Dark Matter, and Baryogenesis
• Low-Scale Leptogenesis in the Scotogenic Neutrino Mass Model
• Constraints on inert dark matter from metastability of the electroweak vacuum
• Derivation of Dark Matter Parity from Lepton Parity
• The inert doublet model in the light of Fermi-LAT gamma-ray data: a global fit analysis
• Probing the Inert Doublet Dark Matter Model with Cherenkov Telescopes
• Mass bounds for baryogenesis from particle decays and the inert doublet model
• Parity Problem of the Scotogenic Neutrino Model
• Natural leptogenesis and neutrino masses with two Higgs doublets
• The New $\nu$MSM : Radiative Neutrino Masses, keV-Scale Dark Matter and Viable Leptogenesis with sub-TeV New Physics
• Cloistered Baryogenesis
• Computer tools in particle physics
• Neutrino assisted GUT baryogenesis - revisited
• Spontaneous CP Violation in SUSY SO(10)

Cited by in corpus (5)

• Fermion Dark Matter with $N_2$ Leptogenesis in Minimal Scotogenic Model
• TeV Scale Leptogenesis with Dark Matter in Non-standard Cosmology
• Low-scale leptogenesis assisted by a real scalar singlet
• Observable Gravitational Waves in Minimal Scotogenic Model
• One-loop Matching of Scotogenic Model onto Standard Model Effective Field Theory up to Dimension 7