Genesis of baryon and dark matter asymmetries through ultraviolet scattering freeze-in
arXiv:2505.22710 · doi:10.1103/gcb5-pgsk
Abstract
We introduce a new mechanism for the simultaneous generation of baryon and dark matter asymmetries through ultraviolet-dominated freeze-in scatterings. The mechanism relies on heavy Majorana neutrinos that connect the visible Standard Model sector to a dark sector through the neutrino portal. Following reheating of the visible sector to a temperature well below the heavy neutrino masses, we show that 2-to-2 scattering processes can populate the dark sector and generate both baryon and dark matter asymmetries. In some parameter regions, the dominant source of baryon asymmetry can be charge transfer from the dark sector, a process we call dark wash-in. We also demonstrate that annihilation of the dark matter to massless states within the dark sector can deplete the symmetric population without destroying the net baryon charge to leave only an asymmetric dark matter abundance today. Depending on the specific model parameters, the observed baryon and dark matter abundances can be attained with heavy neutrino masses GeV, and dark matter masses in the range 0.1 GeV GeV if the dark matter relic abundance is mainly asymmetric and even lower masses if it is symmetric.
arXiv comment44 pages + appendices, 8 figures. v2: version accepted for publication
References in corpus (100)
- Particle Dark Matter: Evidence, Candidates and Constraints
- Supersymmetric Dark Matter
- Towards the Theory of Reheating After Inflation
- Reheating after Inflation
- Sterile Neutrinos as Dark Matter
- Secluded WIMP Dark Matter
- Freeze-In Production of FIMP Dark Matter
- DESI 2024 VI: Cosmological Constraints from the Measurements of Baryon Acoustic Oscillations
- Dark Matter Self-interactions and Small Scale Structure
- Leptogenesis
- Massive neutrinos and cosmology
- Gauge Singlet Scalars as Cold Dark Matter
- A lower bound on the right-handed neutrino mass from leptogenesis
- Symmetries and Strings in Field Theory and Gravity
- Resonant Leptogenesis
- Towards a complete theory of thermal leptogenesis in the SM and MSSM
- Electroweak baryogenesis
- Neutralino Relic Density including Coannihilations
- Relic neutrino decoupling including flavour oscillations
- CP Violation and Baryogenesis due to Heavy Majorana Neutrinos
- Asymmetric Dark Matter
- Largest temperature of the radiation era and its cosmological implications
- Leptogenesis as the origin of matter
- Baryogenesis via neutrino oscillations
- Neutrinoless Double-Beta Decay: Status and Prospects
- WIMP dark matter candidates and searches - current status and future prospects
- Asymmetric Dark Matter: Theories, Signatures, and Constraints
- Review of asymmetric dark matter
- Matter and Antimatter in the Universe
- Production of massive particles during reheating
- The Sphaleron Rate in the Minimal Standard Model
- The Four Basic Ways of Creating Dark Matter Through a Portal
- Instant Preheating
- Dark matter and the early Universe: a review
- Thermal Relics in Hidden Sectors
- Toward the discovery of matter creation with neutrinoless double-beta decay
- Asymmetric Dark Matter from Leptogenesis
- Hylogenesis: A Unified Origin for Baryonic Visible Matter and Antibaryonic Dark Matter
- Constraints on neutrino masses from leptogenesis models
- Planckian Interacting Massive Particles as Dark Matter
- Asymmetric WIMP dark matter
- Do experiments suggest a hierarchy problem?
- UltraViolet Freeze-in
- Darkogenesis
- On Relating the Genesis of Cosmic Baryons and Dark Matter
- Reheating and Post-inflationary Production of Dark Matter
- Production of Purely Gravitational Dark Matter
- Gravitational Production of Dark Matter during Reheating
- Leptogenesis via Collisions: Leaking Lepton Number to the Hidden Sector
- Leptogenesis in the Universe
- Aidnogenesis via Leptogenesis and Dark Sphalerons
- Xogenesis
- Relic Abundance of Asymmetric Dark Matter
- Chilly Dark Sectors and Asymmetric Reheating
- A WIMPy Baryogenesis Miracle
- Baryogenesis for WIMPs
- Asymmetric Dark Matter and Dark Radiation
- Radiative Production of Non-thermal Dark Matter
- Baryogenesis from a dark first-order phase transition
- Baryogenesis from Dark Sector
- Affleck-Dine Cogenesis
- Pangenesis in a Baryon-Symmetric Universe: Dark and Visible Matter via the Affleck-Dine Mechanism
- Baryomorphosis: Relating the Baryon Asymmetry to the "WIMP Miracle"
- Imprint of the seesaw mechanism on feebly interacting dark matter and the baryon asymmetry
- A Review of WIMP Baryogenesis Mechanisms
- Criteria for Natural Hierarchies
- Probing Leptogenesis with the Cosmological Collider
- On UltraViolet Freeze-in Dark Matter during Reheating
- Asymmetric Dark Matter via Spontaneous Co-Genesis
- Wash-In Leptogenesis
- Cosmological Limits on Hidden Sector Dark Matter
- Particle-antiparticle asymmetries from annihilations
- Freezing-in a hot bath: resonances, medium effects and phase transitions
- Non-thermal leptogenesis and UV freeze-in of dark matter: impact of inflationary reheating
- The role of CP violating scatterings in baryogenesis - case study of the neutron portal
- Wash-in leptogenesis after axion inflation
- Cosmic Inflation at the Crossroads
- Asymmetric Dark Matter May Not Be Light
- Warm Dark Matter via Ultra-Violet Freeze-In: Reheating Temperature and Non-Thermal Distribution for Fermionic Higgs Portal Dark Matter
- A Dark Sink Enhances the Direct Detection of Freeze-in Dark Matter
- Symmetric and Asymmetric Reheating
- Similar Dark Matter and Baryon abundances with TeV-scale Leptogenesis
- Dark Matter Candidates and Searches
- Asymmetric Dark Matter and CP Violating Scatterings in a UV Complete Model
- Unitarity constraints on asymmetric freeze-in
- Reheating in two-sector cosmology
- WIMP Cogenesis for Asymmetric Dark Matter and the Baryon Asymmetry
- Symmetry origin of Baryon Asymmetry, Dark Matter and Neutrino Mass
- Towards Cogenesis via Asymmetric Freeze-in: The Who Came-in from the Cold
- Baryogenesis and Dark Matter from Freeze-In
- WIMPy Leptogenesis in Non-Standard Cosmologies
- Probing Gravitational Dark Matter
- Mechanism for baryogenesis via feebly interacting massive particles
- Dark Freeze-out Cogenesis
- Conversion-Driven Leptogenesis: A Testable Theory of Dark Matter and Baryogenesis at the Electroweak Scale
- Sub-MeV Dark Sink Dark Matter
- Hidden-Sector Neutrinos and Freeze-In Leptogenesis
- Dirac leptogenesis from asymmetry wash-in via scatterings
- Minimal effective theory for leptogenesis, dark matter, and neutrino masses
- A lower bound on the right-handed neutrino mass from wash-in leptogenesis