Dark Radiation Alleviates Problems with Dark Matter Halos
arXiv:1404.6127 · doi:10.1103/PhysRevLett.113.161301
Abstract
We show that a scalar and a fermion charged under a global U(1) symmetry can not only explain the existence and abundance of dark matter (DM) and dark radiation (DR), but also imbue DM with improved scattering properties at galactic scales, while remaining consistent with all other observations. Delayed DM-DR kinetic decoupling eases the missing satellites problem, while DR mediated self-interactions of DM ease the cusp vs. core and too big to fail problems. In this scenario, DM is expected to be pseudo-Dirac and have a mass between 100 keV and 10 GeV. The predicted DR may be measurable using the primordial elemental abundances from big bang nucleosynthesis (BBN), and using the cosmic microwave background (CMB).
6 pages, 4 figures. v3: Minor changes (references added, text improved). Fig.4 was not included in the PRL version
References in corpus (58)
- A Universal Density Profile from Hierarchical Clustering
- Where are the missing galactic satellites?
- Observational evidence for self-interacting cold dark matter
- First results from the LUX dark matter experiment at the Sanford Underground Research Facility
- BICEP2 I: Detection Of B-mode Polarization at Degree Angular Scales
- Too big to fail? The puzzling darkness of massive Milky Way subhaloes
- Secluded WIMP Dark Matter
- Halo Formation in Warm Dark Matter Models
- At the heart of the matter: the origin of bulgeless dwarf galaxies and Dark Matter cores
- Starburst-driven Mass Loss from Dwarf Galaxies: Efficiency and Metal Ejection
- Warm Dark Matter as a solution to the small scale crisis: new constraints from high redshift Lyman-alpha forest data
- Observational and Theoretical Constraints on Singular Dark Matter Halos
- Precise Relic WIMP Abundance and its Impact on Searches for Dark Matter Annihilation
- Cuspy No More: How Outflows Affect the Central Dark Matter and Baryon Distribution in Lambda CDM Galaxies
- Subhaloes in Self-Interacting Galactic Dark Matter Haloes
- Beyond Collisionless Dark Matter: Particle Physics Dynamics for Dark Matter Halo Structure
- Hidden Charged Dark Matter
- Constraining Self-Interacting Dark Matter with the Milky Way's dwarf spheroidals
- Dark Matter and Dark Radiation
- JaxoDraw: A graphical user interface for drawing Feynman diagrams. Version 2.0 release notes
- Cores in Dwarf Galaxies from Dark Matter with a Yukawa Potential
- Halo Shape and Relic Density Exclusions of Sommerfeld-Enhanced Dark Matter Explanations of Cosmic Ray Excesses
- Asymmetric Inflationary Reheating and the Nature of Mirror Universe
- Baryons Matter: Why Luminous Satellite Galaxies Have Reduced Central Masses
- The Large Underground Xenon (LUX) Experiment
- The first WIMPy halos
- Dark Matter Self-Interactions and Light Force Carriers
- CDMSlite: A Search for Low-Mass WIMPs using Voltage-Assisted Calorimetric Ionization Detection in the SuperCDMS Experiment
- Damping scales of neutralino cold dark matter
- Atomic Dark Matter
- The primordial abundance of 4He: evidence for non-standard big bang nucleosynthesis
- Is dark matter with long-range interactions a solution to all small-scale problems of ΛCDM cosmology?
- The Small-Scale Power Spectrum of Cold Dark Matter
- The universal Higgs fit
- A Baryonic Solution to the Missing Satellites Problem
- The power spectrum of SUSY-CDM on sub-galactic scales
- A ménage à trois of eV-scale sterile neutrinos, cosmology, and structure formation
- Constraining Dark Matter candidates from structure formation
- Goldstone Bosons as Fractional Cosmic Neutrinos
- Constraints on Large-Scale Dark Acoustic Oscillations from Cosmology
- The Missing Massive Satellites of the Milky Way
- A robust upper limit on N_eff from BBN, circa 2011
- Phenomenology of a very light scalar (100 MeV 10 GeV) mixing with the SM Higgs
- Status of invisible Higgs decays
- Annihilating Cold Dark Matter
- Using the Milky Way satellites to study interactions between cold dark matter and radiation
- Scattering, Damping, and Acoustic Oscillations: Simulating the Structure of Dark Matter Halos with Relativistic Force Carriers
- Relic Neutrinos, thermal axions and cosmology in early 2014
- The massive black hole-velocity dispersion relation and the halo baryon fraction: a case for positive AGN feedback
- Charged-particle decay and suppression of small-scale power
- MeV Dark Matter and Small Scale Structure
- Tight bonds between sterile neutrinos and dark matter
- Dark matter cores in the Fornax and Sculptor dwarf galaxies: joining halo assembly and detailed star formation histories
- Radiative Lepton Model and Dark Matter with Global Symmetry
- Dark matter production from Goldstone boson interactions and implications for direct searches and dark radiation
- Weinberg's Higgs portal confronting recent LUX and LHC results together with upper limits on B^+ and K^+ decay into invisibles
- Collider Signatures of Goldstone Bosons
- Cosmological and astrophysical signatures of dark matter annihilations into pseudo-Goldstone bosons
Cited by in corpus (43)
- Dark Matter Self-interactions and Small Scale Structure
- A White Paper on keV Sterile Neutrino Dark Matter
- The Dark Photon
- Mimetic gravity: a review of recent developments and applications to cosmology and astrophysics
- ETHOS - An Effective Theory of Structure Formation: From dark particle physics to the matter distribution of the Universe
- Strong constraints on self-interacting dark matter with light mediators
- Make Dark Matter Charged Again
- Pseudoscalar - sterile neutrino interactions: reconciling the cosmos with neutrino oscillations
- Probing the Small-Scale Matter Power Spectrum with Large-Scale 21-cm Data
- Dark matter capture in celestial objects: light mediators, self-interactions, and complementarity with direct detection
- Light dark photon and fermionic dark radiation for the Hubble constant and the structure formation
- Dark matter-radiation interactions: the impact on dark matter haloes
- Residual Non-Abelian Dark Matter and Dark Radiation
- Collisional production of sterile neutrinos via secret interactions and cosmological implications
- Suppressing structure formation at dwarf galaxy scales and below: late kinetic decoupling as a compelling alternative to warm dark matter
- Dark matter-radiation interactions: the structure of Milky Way satellite galaxies
- Fundamental physics with the Hubble Frontier Fields: constraining Dark Matter models with the abundance of extremely faint and distant galaxies
- Directional detection of dark matter in universal bound states
- Evidence for Dark Matter Self-Interactions via Collisionless Shocks in Cluster Mergers
- Unveiling secret interactions among sterile neutrinos with big-bang nucleosynthesis
- Dark Catalysis
- On the Power Spectrum of Dark Matter Substructure in Strong Gravitational Lenses
- Gravitational Lensing and the Power Spectrum of Dark Matter Substructure: Insights from the ETHOS N-body Simulations
- View FImP Miracle (by Scale Invariance) Self-interaction
- Probing the small-scale structure in strongly lensed systems via transdimensional inference
- Lyman- forest constraints on interacting dark sectors
- Cosmology Intertwined: A Review of the Particle Physics, Astrophysics, and Cosmology Associated with the Cosmological Tensions and Anomalies
- Beyond subhalos: Probing the collective effect of the Universe's small-scale structure with gravitational lensing
- Wandering in the Lyman-alpha Forest: A Study of Dark Matter-Dark Radiation Interactions
- ETHOS - an Effective Theory of Structure Formation: detecting dark matter interactions through the Lyman- forest
- Constraints on dark matter-neutrino scattering from the Milky-Way satellites and subhalo modeling for dark acoustic oscillations
- Linear scale bounds on dark matter--dark radiation interactions and connection with the small scale crisis of cold dark matter
- Selection Rule for Enhanced Dark Matter Annihilation
- ETHOS -- An Effective Theory of Structure Formation: Impact of Dark Acoustic Oscillations on Cosmic Dawn
- Astrophysical Tests of Dark Matter Self-Interactions
- Dark neutrino interactions make gravitational waves blue
- Two sides of the same coin: sterile neutrinos and dark radiation. Status and perspectives
- Ballistic Dark Matter oscillates above CDM
- Interacting Scalar Radiation and Dark Matter in Cosmology
- Scope of strongly self-interacting thermal WIMPs in a minimal extension and its future prospects
- Probing Dark Relativistic Species and Their Interactions with Dark Matter through CMB and 21cm surveys
- Galactic Positron Excess from Selectively Enhanced Dark Matter Annihilation
- Phenomenological consequences of an interacting multicomponent dark sector