Baryogenesis from neutron-dark matter oscillations

Abstract

It was recently suggested that dark matter consists of ~GeV particles that carry baryon number and mix with the neutron. We demonstrate that this could allow for resonant dark matter-neutron oscillations in the early universe, at finite temperature, leading to low-scale baryogenesis starting from a primordial dark matter asymmetry. In this scenario, the asymmetry transfer happens around 30 MeV, just before big bang nucleosynthesis. We illustrate the idea using a model with a dark U(1)' gauge interaction, which has recently been suggested as a way of addressing the neutron lifetime anomaly. The asymmetric dark matter component of this model is both strongly self-interacting and leads to a suppression of matter density perturbations at small scales, allowing to mitigate the small-scale problems of cold dark matter cosmology. Future CMB experiments will be able to consistently probe, or firmly exclude, this scenario.

arXiv comment14 pages, 6 figures. v3: Added references and made minor clarifications and corrections. Matches published version. v2: Added references and fixed typos

References in corpus (63)

• Observational evidence for self-interacting cold dark matter
• The Simons Observatory: Science goals and forecasts
• Dark Matter Self-interactions and Small Scale Structure
• Big Bang Nucleosynthesis: 2015
• Constraints on the Self-Interaction Cross-Section of Dark Matter from Numerical Simulations of the Merging Galaxy Cluster 1E 0657-5
• Asymmetric Dark Matter
• Dark Matter Halos as Particle Colliders: A Unified Solution to Small-Scale Structure Puzzles from Dwarfs to Clusters
• Asymmetric Dark Matter: Theories, Signatures, and Constraints
• New Constraints on the free-streaming of warm dark matter from intermediate and small scale Lyman-$\alpha$ forest data
• New Parallaxes of Galactic Cepheids from Spatially Scanning the Hubble Space Telescope: Implications for the Hubble Constant
• The non-gravitational interactions of dark matter in colliding galaxy clusters
• The maximum mass and radius of neutron stars and the nuclear symmetry energy
• Pion-nucleon scattering in chiral perturbation theory I: Isospin-symmetric case
• New Limits on Hidden Photons from Past Electron Beam Dumps
• ETHOS - An Effective Theory of Structure Formation: Dark matter physics as a possible explanation of the small-scale CDM problems
• ETHOS - An Effective Theory of Structure Formation: From dark particle physics to the matter distribution of the Universe
• Dark Matter Interpretation of the Neutron Decay Anomaly
• Dark Matter from new Technicolor Theories
• Asymmetric Sneutrino Dark Matter and the Omega(b)/Omega(DM) Puzzle
• Asymmetric WIMP dark matter
• Massive hidden photons as lukewarm dark matter
• Darkogenesis
• Neutron -- Mirror Neutron Oscillation: How Fast Might It Be?
• Neutron - Mirror Neutron Oscillations: How Fast Might They Be?
• DarkSUSY 6 : An Advanced Tool to Compute Dark Matter Properties Numerically
• Revisiting Supernova 1987A Constraints on Dark Photons
• Improved lattice computation of proton decay matrix elements
• Neutron stars exclude light dark baryons
• Aidnogenesis via Leptogenesis and Dark Sphalerons
• Baryogenesis and Dark Matter from $B$ Mesons
• Xogenesis
• Neutron lifetime puzzle and neutron -- mirror neutron oscillation
• BBN constraints on MeV-scale dark sectors. Part II. Electromagnetic decays
• Testing dark decays of baryons in neutron stars
• Was ordinary matter synthesised from mirror matter? An attempt to explain why ${\Omega }_{Baryon}\approx 0.2{\Omega }_{Dark}$
• More about neutron - mirror neutron oscillation
• Oscillating Asymmetric Dark Matter
• Consequences of DM/antiDM Oscillations for Asymmetric WIMP Dark Matter
• Asymmetric Dark Matter from Hidden Sector Baryogenesis
• Extracting the sigma-term from low-energy pion-nucleon scattering
• Baryogenesis from Dark Sector
• Fast Neutron - Mirror Neutron Oscillation and Ultra High Energy Cosmic Rays
• Search for the Neutron Decay n$\to$ X+$\gamma$ where X is a dark matter particle
• Implications of Neutron Star Properties for the Existence of Light Dark Matter
• The Lyman-$\alpha$ forest as a diagnostic of the nature of the dark matter
• Suppressing structure formation at dwarf galaxy scales and below: late kinetic decoupling as a compelling alternative to warm dark matter
• Dark decay of the neutron
• BBN constraints on MeV-scale dark sectors. Part I. Sterile decays
• Baryogenesis from Oscillations of Charmed or Beautiful Baryons
• Dark Side of the Neutron?
• Limits from BBN on Light Electromagnetic Decays
• Signatures of Self-Interacting Dark Matter in the Matter Power Spectrum and the CMB
• Search for dark matter decay of the free neutron from the UCNA experiment: n $\to \chi +e^{+}{e}^{-}$
• Lyman-$\alpha$ forest constraints on interacting dark sectors
• Higgsogenesis
• Baryon Asymmetry and Dark Matter Through the Vector-Like Portal
• Small-scale structure from neutron dark decay
• Baryon Asymmetry, Dark Matter and Local Baryon Number
• Nucleons at Finite Temperature
• Sharing but not Caring: Dark Matter and the Baryon Asymmetry of the Universe
• Neutron disappearance inside the nucleus
• On the thermal mass shift of nucleons
• Chiral perturbation theory analysis of baryon temperature mass shifts

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• New high-sensitivity searches for neutrons converting into antineutrons and/or sterile neutrons at the European Spallation Source
• Neutron oscillations for solving neutron lifetime and dark matter puzzles
• Particle Physics at the European Spallation Source
• Neutron Star Stability in Light of the Neutron Decay Anomaly
• A little theory of everything, with heavy neutral leptons
• Cosmological and astrophysical probes of dark baryons
• Neutron's Dark Secret
• Viable secret neutrino interactions with ultralight dark matter
• Neutron Decay to a Non-Abelian Dark Sector
• Kaon oscillations and baryon asymmetry of the universe
• Neutron Dark Decay
• Dark Matter Catalyzed Baryon Destruction
• Dark Matter Capture by Atomic Nuclei
• Matter-antimatter asymmetry and dark matter stability from baryon number conservation
• Hyperons during proto-neutron star deleptonization and the emission of dark flavoured particles
• QCD preheating: New frontier of baryogenesis
• Neutron Lifetime Discrepancy as a Sign of a Dark Sector?
• Shedding Light on Dark Sectors with Gravitational Waves
• Sterile neutrino production at small mixing in the early universe
• The Strange Physics of Dark Baryons