Manifesting hidden dynamics of a sub-component dark matter

Abstract

We emphasize the distinctive cosmological dynamics in multi-component dark matter scenarios and its impact in probing a sub-dominant component of dark matter. We find that the thermal evolution of the sub-component dark matter is significantly affected by the sizable self-scattering that is naturally realized for sub-$\mathrm{GeV}$ masses. The required annihilation cross section for the sub-component sharply increases as we consider a smaller relative abundance fraction among the dark-matter species. Therefore, contrary to a naive expectation, it can be easier to detect the sub-component with smaller abundance fractions in direct/indirect-detection experiments and cosmological observations. Combining with the current results of accelerator-based experiments, the abundance fractions smaller than $10\%$ are strongly disfavored; we demonstrate this by taking a dark photon portal scenario as an example. Nevertheless, for the abundance fraction larger than $10\%$, the warm dark matter constraints on the sub-dominant component can be complementary to the parameter space probed by accelerator-based experiments.

arXiv comment48 pages, 11 figures

References in corpus (90)

• Large Magellanic Cloud Cepheid Standards Provide a 1% Foundation for the Determination of the Hubble Constant and Stronger Evidence for Physics Beyond LambdaCDM
• Sterile Neutrinos as Dark Matter
• The Waning of the WIMP? A Review of Models, Searches, and Constraints
• Inelastic Dark Matter
• Constraints on the Self-Interaction Cross-Section of Dark Matter from Numerical Simulations of the Merging Galaxy Cluster 1E 0657-5
• Update on scalar singlet dark matter
• WIMP dark matter candidates and searches - current status and future prospects
• A search for light dark matter in XENON10 data
• Exploring Portals to a Hidden Sector Through Fixed Targets
• Lyman-alpha constraints on warm and on warm-plus-cold dark matter models
• Precision big bang nucleosynthesis with improved Helium-4 predictions
• New Constraints and Prospects for sub-GeV Dark Matter Scattering off Electrons in Xenon
• Cores in Dwarf Galaxies from Dark Matter with a Yukawa Potential
• Updated Nucleosynthesis Constraints on Unstable Relic Particles
• Detecting Dark Matter Annihilation with CMB Polarization : Signatures and Experimental Prospects
• Search for Invisible Decays of a Dark Photon Produced in e+e- Collisions at BaBar
• Constraining Light Dark Matter with Diffuse X-Ray and Gamma-Ray Observations
• Constraining Dark Matter-Baryon Scattering with Linear Cosmology
• First Dark Matter Constraints from a SuperCDMS Single-Charge Sensitive Detector
• Warm dark matter chills out: constraints on the halo mass function and the free-streaming length of dark matter with 8 quadruple-image strong gravitational lenses
• Constraints on Sub-GeV Dark Matter-Electron Scattering from the DarkSide-50 Experiment
• SENSEI: Direct-Detection Constraints on Sub-GeV Dark Matter from a Shallow Underground Run Using a Prototype Skipper-CCD
• Dark Matter through the Higgs portal
• SENSEI: First Direct-Detection Constraints on sub-GeV Dark Matter from a Surface Run
• Dark matter search in missing energy events with NA64
• (In)direct Detection of Boosted Dark Matter
• Status of the scalar singlet dark matter model
• Direct Detection of Strongly Interacting Sub-GeV Dark Matter via Electron Recoils
• New Electron Beam-Dump Experiments to Search for MeV to few-GeV Dark Matter
• Refined Bounds on MeV-scale Thermal Dark Sectors from BBN and the CMB
• Constraints from Ly-$\alpha$ forests on non-thermal dark matter including resonantly-produced sterile neutrinos
• A Critical Assessment of CMB Limits on Dark Matter-Baryon Scattering: New Treatment of the Relative Bulk Velocity
• Global analyses of Higgs portal singlet dark matter models using GAMBIT
• A low-mass dark matter search using ionization signals in XENON100
• Prospects for Beyond the Standard Model Physics Searches at the Deep Underground Neutrino Experiment
• Assisted freeze-out
• Lensing substructure quantification in RXJ1131-1231: A 2 keV lower bound on dark matter thermal relic mass
• The Imprint of Warm Dark Matter on the Cosmological 21-cm Signal
• Constraining Non-Cold Dark Matter Models with the Global 21-cm Signal
• Constraining sterile neutrino cosmologies with strong gravitational lensing observations at redshift z~0.2
• BBN constraints on MeV-scale dark sectors. Part II. Electromagnetic decays
• Self-Scattering for Dark Matter with an Excited State
• BBN constraints on the annihilation of MeV-scale dark matter
• Evaporating the Milky Way halo and its satellites with inelastic self-interacting dark matter
• Inelastic Boosted Dark Matter at Direct Detection Experiments
• Integral X-ray constraints on sub-GeV Dark Matter
• Boosted dark matter signals uplifted with self-interaction
• Matter Power Spectrum in Hidden Neutrino Interacting Dark Matter Models: A Closer Look at the Collision Term
• Electromagnetic Cascades and Cascade Nucleosynthesis in the Early Universe
• Dark Matter "Collider" from Inelastic Boosted Dark Matter
• The Direct Detection of Boosted Dark Matter at High Energies and PeV events at IceCube
• Probing the nature of dark matter by forward modeling flux ratios in strong gravitational lenses
• The Implications of a Pre-reionization 21 cm Absorption Signal for Fuzzy Dark Matter
• Dark matter signals from timing spectra at neutrino experiments
• Early formation of supermassive black holes via dark matter self-interactions
• Ruling out 3 keV warm dark matter using 21 cm-EDGES data
• A loophole to the universal photon spectrum in electromagnetic cascades: application to the "cosmological lithium problem"
• Revisiting Big-Bang Nucleosynthesis Constraints on Dark-Matter Annihilation
• A limit on the warm dark matter particle mass from the redshifted 21 cm absorption line
• Boosted Dark Matter at the Deep Underground Neutrino Experiment
• Gravitational Lensing and the Power Spectrum of Dark Matter Substructure: Insights from the ETHOS N-body Simulations
• Cold dark matter plus not-so-clumpy dark relics
• Is Self-Interacting Dark Matter Undergoing Dark Fusion?
• Search for Boosted Dark Matter at ProtoDUNE
• Fuzzy Dark Matter at Cosmic Dawn: New 21-cm Constraints
• Dark Matter microphysics and 21 cm observations
• Constraints on mixed dark matter from anomalous strong lens systems
• Boosted Dark Matter at Neutrino Experiments
• Constraints on warm dark matter from weak lensing in anomalous quadruple lenses
• Self-heating dark matter via semi-annihilation
• Exchange driven freeze out of dark matter
• Boosted Dark Matter Quarrying at Surface Neutrino Detectors
• Cosmological Constraint on the Light Gravitino Mass from CMB Lensing and Cosmic Shear
• Explaining the ANITA Anomaly with Inelastic Boosted Dark Matter
• Constraining warm dark matter with 21 cm line fluctuations due to minihalos
• Deciphering the Archaeological Record: Cosmological Imprints of Non-Minimal Dark Sectors
• Exploring the Universe with Dark Light Scalars
• Two Real Scalar WIMP Model in the Assisted Freeze-Out Scenario
• The impact of inelastic self-interacting dark matter on the dark matter structure of a Milky Way halo
• Implications of the XENON1T Excess on the Dark Matter Interpretation
• Self-heating of Strongly Interacting Massive Particles
• Probing Energetic Light Dark Matter with Multi-Particle Tracks Signatures at DUNE
• Searching for Boosted Dark Matter via Dark-Strahlung
• Escalating core formation with dark matter self-heating
• Structure formation in a mixed dark matter model with decaying sterile neutrino: the 3.5 keV X-ray line and the Galactic substructure
• Core formation from self-heating dark matter
• Optimizing Energetic Light Dark Matter Searches in Dark Matter and Neutrino Experiments
• Aspects of Dark Matter Annihilation in Cosmology
• Constraints on long-lived electrically charged massive particles from anomalous strong lens systems
• Weighing the Light Gravitino Mass with Weak Lensing Surveys

Cited by in corpus (4)

• An Analytic Approach to Light Dark Matter Propagation
• Search for Boosted Dark Matter in COSINE-100
• Directional Direct Detection of MeV Scale Boosted Dark Matter in Two Component Dark Matter Scenario via Dark Photon Interaction
• Structure Formation under Inelastic Two-Component Dark Matter: Halo Statistics and Matter Power Spectra in the High-$z$ Universe