KeV Warm Dark Matter and Composite Neutrinos

Abstract

Elementary keV sterile Dirac neutrinos can be a natural ingredient of the composite neutrino scenario. For a certain class of composite neutrino theories, these sterile neutrinos naturally have the appropriate mixing angles to be resonantly produced warm dark matter (WDM). Alternatively, we show these sterile neutrinos can be WDM produced by an entropy-diluted thermal freeze-out, with the necessary entropy production arising not from an out-of-equilibrium decay, but rather from the confinement of the composite neutrino sector, provided there is sufficient supercooling.

12 pages, 2 figures, published version

References in corpus (36)

• Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Sterile Neutrinos as Dark Matter
• Halo Formation in Warm Dark Matter Models
• A New Dark Matter Candidate: Non-thermal Sterile Neutrinos
• The role of sterile neutrinos in cosmology and astrophysics
• Missing Energy Signatures of Dark Matter at the LHC
• Massive sterile neutrinos as warm Dark Matter
• Lyman-alpha constraints on warm and on warm-plus-cold dark matter models
• Sterile neutrinos: the dark side of the light fermions
• The $\nu$MSM, Inflation, and Dark Matter
• Sterile neutrinos, dark matter, and the pulsar velocities in models with a Higgs singlet
• Can sterile neutrinos be the dark matter?
• Lightest sterile neutrino abundance within the nuMSM
• Sterile neutrino dark matter as a consequence of nuMSM-induced lepton asymmetry
• Where to find a dark matter sterile neutrino?
• The velocity function in the local environment from LCDM and LWDM constrained simulations
• Relic keV sterile neutrinos and reionization
• Neutral current induced neutrino oscillations in a supernova
• Constraints on the parameters of radiatively decaying dark matter from the dark matter halo of the Milky Way and Ursa Minor
• Constraints on decaying Dark Matter from XMM-Newton observations of M31
• Quark-Gluon Plasma Freeze-Out from a Supercooled State?
• Constraining Sterile Neutrino Warm Dark Matter with Chandra Observations of the Andromeda Galaxy
• Dark Matter Search Using Chandra Observations of Willman 1, and a Spectral Feature Consistent with a Decay Line of a 5 keV Sterile Neutrino
• Searching for dark matter in X-rays: how not to check the dark matter origin of a spectral feature
• Model independent analysis of dark matter points to a particle mass at the keV scale
• The mass of the dark matter particle from theory and observations
• Deriving Models for keV sterile Neutrino Dark Matter with the Froggatt-Nielsen mechanism
• Dark Matter Search Using XMM-Newton Observations of Willman 1
• Sterile neutrino production via active-sterile oscillations: the quantum Zeno effect
• Inflaton mass in the nuMSM inflation
• Composite Dirac Neutrinos
• Light Neutrinos from a Mini-Seesaw Mechanism in Warped Space
• Searching for Composite Neutrinos in the Cosmic Microwave Background
• Constraints on composite Dirac neutrinos from observations of galaxy clusters
• Neutrino Mass and $\mu \to e+\gamma$ from a Mini-Seesaw
• Magnetic dipole moment and keV neutrino dark matter

Cited by in corpus (16)

• Sterile Neutrino Dark Matter
• A White Paper on keV Sterile Neutrino Dark Matter
• keV Neutrino Model Building
• keV Sterile Neutrino Dark Matter from Singlet Scalar Decays: The Most General Case
• Neutrino Self-Interactions: A White Paper
• Physical laboratory at the center of the Galaxy
• Higgs boson mass, neutrino masses and mixing and keV dark matter in an $U(1{)}_R-$ lepton number model
• A Dynamical Framework for KeV Dirac Neutrino Warm Dark Matter
• Influence of a keV sterile neutrino on neutrino-less double beta decay -- how things changed in the recent years
• Common origin of reactor and sterile neutrino mixing
• Neutrino Masses from Low Scale Partial Compositeness
• Constraining models for keV sterile neutrinos by quasi-degenerate active neutrinos
• Electron events from the scattering with solar neutrinos in the search of keV scale sterile neutrino dark matter
• Emergent neutrinos from heavy messengers
• Composite Dark Matter and Neutrino Masses from a Light Hidden Sector
• Is it possible to unify three kinds of Dark Matters into a Kaluza-Klein Neutrino?