Inert Scalar Doublet Asymmetry as Origin of Dark Matter

Abstract

In the inert scalar doublet framework, we analyze what would be the effect of a $B-L$ asymmetry that could have been produced in the Universe thermal bath at high temperature. We show that, unless the "${\lambda }_5$" scalar interaction is tiny, this asymmetry is automatically reprocessed in part into an inert scalar asymmetry that could be at the origin of dark matter today. Along this scenario, the inert mass scale lies in the few-TeV range and direct detection constraints require that the inert scalar particles decay into a lighter dark matter particle which, as the inert doublet, is odd under a $Z_2$ symmetry.

arXiv comment12 pages, 7 figures, t-channel contribution added, implies modifications of the scenario itself

References in corpus (20)

• First results from the LUX dark matter experiment at the Sanford Underground Research Facility
• Verifiable Radiative Seesaw Mechanism of Neutrino Mass and Dark Matter
• Minimal Dark Matter
• Improved Naturalness with a Heavy Higgs: An Alternative Road to LHC Physics
• The Inert Doublet Model: an Archetype for Dark Matter
• Update on scalar singlet dark matter
• Asymmetric Dark Matter: Theories, Signatures, and Constraints
• Review of asymmetric dark matter
• The Sphaleron Rate in the Minimal Standard Model
• Decaying Dark Matter can explain the electron/positron excesses
• Scalar Multiplet Dark Matter
• On Relating the Genesis of Cosmic Baryons and Dark Matter
• Dark Matter, Baryon Asymmetry, and Spontaneous B and L Breaking
• Asymmetric Inelastic Inert Doublet Dark Matter from Triplet Scalar Leptogenesis
• Oscillating Asymmetric Dark Matter
• Consequences of DM/antiDM Oscillations for Asymmetric WIMP Dark Matter
• Baryon and lepton number violation rates across the electroweak crossover
• Electroweakly-Interacting Dirac Dark Matter
• Higgsogenesis
• Baryogenesis through split Higgsogenesis

Cited by in corpus (5)

• Asymmetric Dark Matter Models in SO(10)
• Minimal Asymmetric Dark Matter
• Sharing but not Caring: Dark Matter and the Baryon Asymmetry of the Universe
• The Simplest Dark Matter Model at the Edge of Perturbativity
• Primordial high energy neutrinos: theoretical/observational constraints and sharp spectral features