Dark Freeze-out Cogenesis

Abstract

We propose a new mechanism where a multi-component dark sector generates the observed dark matter abundance and baryon asymmetry and thus addresses the coincidence between the two. The thermal freeze-out of dark matter annihilating into meta-stable dark partners sets the dark matter relic abundance while providing the out-of-equilibrium condition for baryogenesis. The meta-stable state triggers baryon asymmetry production by its decay well after the freeze-out and potentially induces a period of early matter domination before its decay. The dark matter and baryon abundances are related through number conservation within the dark sector (cogenesis). The "coincidence" is a natural outcome with GeV- to TeV-scale symmetric dark matter and the dark sector's interactions with the Standard Model quarks. We present a UV-complete model and explore its phenomenological predictions, including dark matter direct detection signals, LHC signatures of new massive particles with color charges and long-lived particles with displaced vertices, dark matter-induced nucleon conversions, (exotic) dark matter indirect detection signals, and effects on the cosmological matter power spectrum. As a side result, we provide a novel analytical treatment for dark sector freeze-out, which may prove useful in the study of related scenarios.

arXiv comment31 pages, 13 figures, 1 appendix. References and minor comments added, conclusions unchanged, matches published version

References in corpus (73)

• Supersymmetric Dark Matter
• The Waning of the WIMP? A Review of Models, Searches, and Constraints
• Asymmetric Dark Matter
• The SIMP Miracle
• Asymmetric Dark Matter: Theories, Signatures, and Constraints
• A New Era in the Quest for Dark Matter
• Indirect Dark Matter Signatures in the Cosmic Dark Ages I. Generalizing the Bound on s-wave Dark Matter Annihilation from Planck
• Review of asymmetric dark matter
• Dark Matter and Dark Radiation
• The Four Basic Ways of Creating Dark Matter Through a Portal
• Thermal Relics in Hidden Sectors
• Asymmetric Dark Matter from Leptogenesis
• The Small-Scale Power Spectrum of Cold Dark Matter
• The power spectrum of SUSY-CDM on sub-galactic scales
• Hylogenesis: A Unified Origin for Baryonic Visible Matter and Antibaryonic Dark Matter
• Higgs portal, fermionic dark matter, and a Standard Model like Higgs at 125 GeV
• CEPC Conceptual Design Report: Volume 2 - Physics & Detector
• Forbidden Dark Matter
• (In)direct Detection of Boosted Dark Matter
• Probing exotic phenomena at the interface of nuclear and particle physics with the electric dipole moments of diamagnetic atoms: A unique window to hadronic and semi-leptonic CP violation
• The number and size of subhalo-induced gaps in stellar streams
• Search for supersymmetry in proton-proton collisions at 13 TeV in final states with jets and missing transverse momentum
• Search for narrow and broad dijet resonances in proton-proton collisions at $\sqrt{s}=$ 13 TeV and constraints on dark matter mediators and other new particles
• Reheating Effects in the Matter Power Spectrum and Implications for Substructure
• Cannibal Dark Matter
• Model-Independent Indirect Detection Constraints on Hidden Sector Dark Matter
• Dark matter constraints from box-shaped gamma-ray features
• On the capture of dark matter by neutron stars
• Silk damping at a redshift of a billion: a new limit on small-scale adiabatic perturbations
• Heating up Neutron Stars with Inelastic Dark Matter
• Xogenesis
• Co-Decaying Dark Matter
• WIMP diffusion in the solar system including solar depletion and its effect on Earth capture rates
• Chilly Dark Sectors and Asymmetric Reheating
• A WIMPy Baryogenesis Miracle
• Terrestrial and Solar Limits on Long-Lived Particles in a Dark Sector
• Baryogenesis for WIMPs
• The Polarised Valence Quark Distribution from semi-inclusive DIS
• Warming Nuclear Pasta with Dark Matter: Kinetic and Annihilation Heating of Neutron Star Crusts
• Probing Baryogenesis with Displaced Vertices at the LHC
• Detecting Boosted Dark Matter from the Sun with Large Volume Neutrino Detectors
• A Hidden Dark Matter Sector, Dark Radiation, and the CMB
• Simply split SIMPs
• Twin Baryogenesis
• Baryomorphosis: Relating the Baryon Asymmetry to the "WIMP Miracle"
• A Review of WIMP Baryogenesis Mechanisms
• Observability of Dark Matter Substructure with Pulsar Timing Correlations
• Emergent Dark Matter, Baryon, and Lepton Numbers
• Baryogenesis from Oscillations of Charmed or Beautiful Baryons
• Top-flavored dark matter and the forward-backward asymmetry
• Probing Small-Scale Power Spectra with Pulsar Timing Arrays
• Physics at the FCC-hh, a 100 TeV pp collider
• Signatures of Top Flavored Dark Matter
• The Compact Linear e${}^{+}$e${}^{-}$ Collider (CLIC): Physics Potential
• Impeded Dark Matter
• Dark Photons from the Center of the Earth: Smoking-Gun Signals of Dark Matter
• Search for long-lived particles with displaced vertices in multijet events in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Natural Baryogenesis from Unnatural Supersymmetry
• First search for dark matter annihilations in the Earth with the IceCube Detector
• Theories relating baryon asymmetry and dark matter: A mini review
• Exchange driven freeze out of dark matter
• Relic Abundance in a Secluded Dark Matter Scenario with a Massive Mediator
• Conditions for detecting lensed Population III galaxies in blind surveys with the James Webb Space Telescope, the Roman Space Telescope and Euclid
• Helicitogenesis: WIMPy baryogenesis with sterile neutrinos and other realizations
• Similar Dark Matter and Baryon abundances with TeV-scale Leptogenesis
• Dark Matter Microhalos in the Solar Neighborhood: Pulsar Timing Signatures of Early Matter Domination
• WIMPs Without Weakness: Generalized Mass Window with Entropy Injection
• Constraining dark matter annihilation with cosmic ray antiprotons using neural networks
• WIMP Cogenesis for Asymmetric Dark Matter and the Baryon Asymmetry
• Constraints on CP violating four-fermion interactions
• The 21-cm signals from ultracompact minihalos as a probe of primordial small-scale fluctuations
• Mechanism for baryogenesis via feebly interacting massive particles
• LHC Signatures of WIMP-triggered Baryogenesis

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• Affleck-Dine Cogenesis of Baryon and Dark Matter
• WIMPy Leptogenesis in Non-Standard Cosmologies
• Ultraviolet freeze-in baryogenesis
• Minimal effective theory for leptogenesis, dark matter, and neutrino masses
• Genesis of baryon and dark matter asymmetries through ultraviolet scattering freeze-in
• Cogenesis of visible and dark matter in a scotogenic model