Warm Dark Matter from keVins

Abstract

We propose a simple model for Warm Dark Matter (WDM) in which two fermions are added to the Standard Model: (quasi-) stable "keVins" (keV inert fermions) which account for WDM and their unstable brothers, the "GeVins" (GeV inert fermions), both of which carry zero electric charge and lepton number, and are (approximately) "inert", in the sense that their only interactions are via suppressed couplings to the Z. We consider scenarios in which stable keVins are thermally produced and their abundance is subsequently diluted by entropy production from the decays of the heavier unstable GeVins. This mechanism could be implemented in a wide variety of models, including E_6 inspired supersymmetric models or models involving sterile neutrinos.

32 pages, 9 figures, 2 tables

References in corpus (22)

• Light Sterile Neutrinos: A White Paper
• A possible symmetry of the $\nu$MSM
• Opening a new window for warm dark matter
• Sterile neutrino dark matter as a consequence of nuMSM-induced lepton asymmetry
• Light Sterile Neutrinos: Models and Phenomenology
• Direct X-ray Constraints on Sterile Neutrino Warm Dark Matter
• Decaying warm dark matter and neutrino masses
• On the hadronic contribution to sterile neutrino production
• Radiative seesaw: Warm dark matter, collider and lepton flavour violating signals
• Strong Upper Limits on Sterile Neutrino Warm Dark Matter
• Soft L_e-L_mu-L_tau flavour symmetry breaking and sterile neutrino keV Dark Matter
• Sterile neutrino dark matter in $B-L$ extension of the standard model and galactic 511 keV line
• Enhancing Dark Matter Annihilation into Neutrinos
• Small scale aspects of warm dark matter : power spectra and acoustic oscillations
• Searching for dark matter sterile neutrino in laboratory
• Is gravitino still a warm dark matter candidate?
• Axino warm dark matter and ${\Omega }_b-{\Omega }_{DM}$ coincidence
• Neutralino Dark Matter with Inert Higgsinos and Singlinos
• Composite Dirac Neutrinos
• Bino Dark Matter and Big Bang Nucleosynthesis in the Constrained E6SSM with Massless Inert Singlinos
• Warm dark matter at small scales: peculiar velocities and phase space density
• General Conditions for Lepton Flavour Violation at Tree- and 1-Loop Level

Cited by in corpus (26)

• Sterile Neutrino Dark Matter
• A White Paper on keV Sterile Neutrino Dark Matter
• The Present and Future Status of Heavy Neutral Leptons
• New Production Mechanism for keV Sterile Neutrino Dark Matter by Decays of Frozen-In Scalars
• Combined explanations of B-physics anomalies: the sterile neutrino solution
• keV Neutrino Model Building
• keV Sterile Neutrino Dark Matter from Singlet Scalar Decays: Basic Concepts and Subtle Features
• keV Sterile Neutrino Dark Matter from Singlet Scalar Decays: The Most General Case
• Constrained Exceptional Supersymmetric Standard Model with a Higgs Near 125 GeV
• Radiative Scaling Neutrino Mass and Warm Dark Matter
• Fermionic WIMPs and Vacuum Stability in the Scotogenic Model
• Warm and cold fermionic dark matter via freeze-in
• Dodelson-Widrow Production of Sterile Neutrino Dark Matter with Non-Trivial Initial Abundance
• E6 inspired SUSY models with exact custodial symmetry
• The New $\nu$MSM : Radiative Neutrino Masses, keV-Scale Dark Matter and Viable Leptogenesis with sub-TeV New Physics
• Dark Radiation or Warm Dark Matter from long lived particle decays in the light of Planck
• Connecting neutrino physics with dark matter
• Exotic Higgs decays in the E6 inspired SUSY models
• Threshold Corrections in the Exceptional Supersymmetric Standard Model
• Sterile Neutrino Dark Matter with Supersymmetry
• Influence of a keV sterile neutrino on neutrino-less double beta decay -- how things changed in the recent years
• Cosmological Imprints of Frozen-In Light Sterile Neutrinos
• Common origin of reactor and sterile neutrino mixing
• Discovering $E_6$ SUSY models in gluino cascade decays at the LHC
• Constraining models for keV sterile neutrinos by quasi-degenerate active neutrinos
• A Review of the Exceptional Supersymmetric Standard Model