Fingerprints of freeze-in dark matter in an early matter-dominated era

Abstract

We study the impact of an alternate cosmological history with an early matter-dominated epoch on the freeze-in production of dark matter. Such early matter domination is triggered by a meta-stable matter field dissipating into radiation. In general, the dissipation rate has a non-trivial temperature and scale factor dependence. Compared to the usual case of dark matter production via the freeze-in mechanism in a radiation-dominated universe, in this scenario, orders of magnitude larger coupling between the visible and the dark sector can be accommodated. Finally, as a proof of principle, we consider a specific model where the dark matter is produced by a sub-GeV dark photon having a kinetic mixing with the Standard Model photon. We point out that the parameter space of this model can be probed by the experiments in the presence of an early matter-dominated era.

arXiv comment17 pages, 3 captioned figures. Comments are welcome. v2: references updated. v3: minor revision in text, figures updated for clarification

References in corpus (92)

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Towards the Theory of Reheating After Inflation
• Dark Matter Search Results from a One Tonne$\times$Year Exposure of XENON1T
• A Theory of Dark Matter
• Results from a search for dark matter in the complete LUX exposure
• Dark Matter Results from 225 Live Days of XENON100 Data
• Secluded WIMP Dark Matter
• Freeze-In Production of FIMP Dark Matter
• Direct constraints on the dark matter self-interaction cross-section from the merging galaxy cluster 1E0657-56
• Universe Reheating after Inflation
• Dark Matter Results From 54-Ton-Day Exposure of PandaX-II Experiment
• Equilibrium State of a Massless Self-Interacting Scalar Field in the De Sitter Background
• Secluded U(1) below the weak scale
• A facility to Search for Hidden Particles at the CERN SPS: the SHiP physics case
• Wino Cold Dark Matter from Anomaly-Mediated SUSY Breaking
• Primordial Black Holes
• MeV-scale Reheating Temperature and Thermalization of Neutrino Background
• Reheating in Inflationary Cosmology: Theory and Applications
• Astrophysical Signatures of Secluded Dark Matter
• Supersymmetry Breaking in the Early Universe
• FASER: ForwArd Search ExpeRiment at the LHC
• The Four Basic Ways of Creating Dark Matter Through a Portal
• Cosmological Constraints on Late-time Entropy Production
• MeV-scale reheating temperature and thermalization of oscillating neutrinos by radiative and hadronic decays of massive particles
• Hunting All the Hidden Photons
• New Limits on Hidden Photons from Past Electron Beam Dumps
• New Exclusion Limits on Dark Gauge Forces from Proton Bremsstrahlung in Beam-Dump Data
• Evidence for nu_mu -> nu_e Oscillations from Pion Decay in Flight Neutrinos
• Dark Matter, Millicharges, Axion and Scalar Particles, Gauge Bosons, and Other New Physics with LDMX
• Solar constraints on hidden photons re-visited
• Dark Radiation constraints on minicharged particles in models with a hidden photon
• New Exclusion Limits for Dark Gauge Forces from Beam-Dump Data
• Reheating and Post-inflationary Production of Dark Matter
• Cosmic Density Perturbations from Late-Decaying Scalar Condensations
• Inflaton Oscillations and Post-Inflationary Reheating
• Non-thermal dark matter via Affleck-Dine baryogenesis and its detection possibility
• Spin-2 Portal Dark Matter
• Freeze-In Dark Matter with Displaced Signatures at Colliders
• Gravitational Production of Dark Matter during Reheating
• Theory and Phenomenology of Planckian Interacting Massive Particles as Dark Matter
• On the Solution to the Polonyi Problem with $O$(10~TeV) Gravitino Mass in Supergravity
• Enhancement of the Dark Matter Abundance Before Reheating: Applications to Gravitino Dark Matter
• Dark Matter and Gauge Coupling Unification in Non-supersymmetric SO(10) Grand Unified Models
• When the Universe Expands Too Fast: Relentless Dark Matter
• On the reheating stage after inflation
• Dynamics of oscillating scalar field in thermal environment
• Co-Decaying Dark Matter
• Gravitational portals in the early Universe
• Gauge Coupling Unification and Non-Equilibrium Thermal Dark Matter
• Supernova Constraints on MeV Dark Sectors from e+ e- Annihilations
• Dark Matter Freeze-in Production in Fast-Expanding Universes
• Production of massive stable particles in inflaton decay
• The Case for an EeV Gravitino
• Inflation and High-Scale Supersymmetry with an EeV Gravitino
• Baryons and Dark Matter from the Late Decay of a Supersymmetric Condensate
• Observable signatures of dark photons from supernovae
• Dissipative Effects on Reheating after Inflation
• A Minimal Model of Gravitino Dark Matter
• Dark Matter Production in an Early Matter Dominated Era
• Freezing-in dark matter through a heavy invisible $Z^{\prime }$
• Scalar singlet dark matter in non-standard cosmologies
• Phenomenology of Self-Interacting Dark Matter in a Matter-Dominated Universe
• Reheating the Standard Model from a hidden sector
• Gravitino Decay in High Scale Supersymmetry with R-parity Violation
• Moduli decay in the hot early Universe
• Dark Matter Freeze-out During Matter Domination
• Moduli Portal Dark Matter
• Concentrated Dark Matter: Enhanced Small-scale Structure from Co-Decaying Dark Matter
• Neutrino Portal to FIMP Dark Matter with an Early Matter Era
• Connecting CMB anisotropy and cold dark matter phenomenology via reheating
• Ultraviolet Freeze-in with a Time-dependent Inflaton Decay
• (Non-)thermal production of WIMPs during kination
• MeV Dark Matter Complementarity and the Dark Photon Portal
• Can oscillating scalar fields decay into particles with a large thermal mass?
• Light(ly)-coupled Dark Matter in the keV Range: Freeze-In and Constraints
• Higgs portal dark matter in non-thermal cosmologies
• Vacuum Stability and Radiative Electroweak Symmetry Breaking in an SO(10) Dark Matter Model
• Increasing Temperature toward the Completion of Reheating
• Reviving $Z$ and Higgs Mediated Dark Matter Models in Matter Dominated Freeze-out
• Gravitino or Axino Dark Matter with Reheat Temperature as high as $10^{16}$ GeV
• Implications of time-dependent inflaton decay on reheating and dark matter production
• Two phase reheating: CMB constraints on inflaton and dark matter phenomenology
• Light Dark Matter from Entropy Dilution
• Thermal Goldstino Production with Low Reheating Temperatures
• On finite density effects on cosmic reheating and moduli decay and implications for Dark Matter production
• Establishing the Dark Matter Relic Density in an Era of Particle Decays
• Dark matter seeping through dynamic gauge kinetic mixing
• CMB constraints on dark matter phenomenology via reheating in minimal plateau inflation
• WIMPs Without Weakness: Generalized Mass Window with Entropy Injection
• Saxion Cosmology for Thermalized Gravitino Dark Matter
• Dilaton dominance in the early Universe dilutes Dark Matter relic abundances
• Thermal background can solve the cosmological moduli problem