Dark matter from late decays and the small-scale structure problems

Abstract

The generation of dark matter in late decays of quasi-stable massive particles has been proposed as a viable framework to address the excess of power found in numerical N-body simulations for cold dark matter cosmologies. We identify a convenient set of variables to illustrate which requirements need to be satisfied in any generic particle physics model to address the small scale problems and to fulfill other astrophysical constraints. As a result of this model-independent analysis, we point out that meeting these requirements in a completely natural way is inherently difficult. In particular, we re-examine the role of gravitinos and Kaluza-Klein gravitons in this context and find them disfavoured as a solution to the small-scale problems in case they are DM candidates generated in the decay of thermally produced WIMPs. We propose right-handed sneutrinos and right-handed Kaluza-Klein neutrinos as alternatives. We find that they are viable dark matter candidates, but that they can contribute to a solution of the small scale problems only in case the associated Dirac neutrino mass term appears as a subdominant contribution in the neutrino mass matrix.

Small changes, matches the published version

References in corpus (79)

• A Universal Density Profile from Hierarchical Clustering
• The Structure of Cold Dark Matter Halos
• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Particle Dark Matter: Evidence, Candidates and Constraints
• Dark Matter Substructure in Galactic Halos
• Where are the missing galactic satellites?
• Observational evidence for self-interacting cold dark matter
• Cold and Fuzzy Dark Matter
• Out Of This World Supersymmetry Breaking
• Gaugino Mass without Singlets
• Bounds on Universal Extra Dimensions
• The Inner Structure of LambdaCDM Halos III: Universality and Asymptotic Slopes
• Non-Baryonic Dark Matter - Observational Evidence and Detection Methods
• DarkSUSY: Computing Supersymmetric Dark Matter Properties Numerically
• Supersymmetric Unification Without Low Energy Supersymmetry And Signatures for Fine-Tuning at the LHC
• Observational and Theoretical Constraints on Singular Dark Matter Halos
• Neutralino Relic Density including Coannihilations
• Is the Lightest Kaluza-Klein Particle a Viable Dark Matter Candidate?
• Cosmological parameters from combining the Lyman-alpha forest with CMB, galaxy clustering and SN constraints
• Radiative Corrections to Kaluza-Klein Masses
• Dark Matter Scaling Relations
• Superweakly Interacting Massive Particles
• Halo Substructure And The Power Spectrum
• The Lyman-alpha Forest Power Spectrum from the Sloan Digital Sky Survey
• Big Bang Nucleosynthesis Constraints on Hadronically and Electromagnetically Decaying Relic Neutral Particles
• Substructure and halo density profiles in a Warm Dark Matter Cosmology
• Global analysis of three-flavor neutrino masses and mixings
• Bosonic Supersymmetry? Getting Fooled at the LHC
• Can sterile neutrinos be the dark matter?
• SuperWIMP Dark Matter Signals from the Early Universe
• Axinos as Cold Dark Matter
• Particle physics catalysis of thermal Big Bang Nucleosynthesis
• Quintessence and the Relic Density of Neutralinos
• Can sterile neutrinos be ruled out as warm dark matter candidates?
• Cusps in CDM halos
• Gravitino Dark Matter in the CMSSM
• Search for Supernova Relic Neutrinos at Super-Kamiokande
• How cold is cold dark matter? Small scales constraints from the flux power spectrum of the high-redshift Lyman-alpha forest
• Elastic Scattering and Direct Detection of Kaluza-Klein Dark Matter
• Halo Cores and Phase Space Densities: Observational Constraints on Dark Matter Physics and Structure Formation
• Discrimination of Supersymmetry and Universal Extra Dimensions at Hadron Colliders
• Gravitino Dark Matter and Cosmological Constraints
• Non-Thermal Production of WIMPs and the Sub-Galactic Structure of the Universe
• Dark Matter from Early Decays
• SuperWIMP Gravitino Dark Matter from Slepton and Sneutrino Decays
• Precise Calculation of the Relic Density of Kaluza-Klein Dark Matter in Universal Extra Dimensions
• SuperWIMP Solutions to Small Scale Structure Problems
• The Abundance of Kaluza-Klein Dark Matter with Coannihilation
• Annihilating Cold Dark Matter
• Right-Handed Sneutrino as Cold Dark Matter
• SUSY Dark Matter and Quintessence
• Gravitino Dark Matter in the CMSSM With Improved Constraints from BBN
• Contrasting Supersymmetry and Universal Extra Dimensions at the CLIC Multi-TeV e+e- Collider
• Charged-particle decay and suppression of small-scale power
• Graviton Cosmology in Universal Extra Dimensions
• Big Bang Nucleosynthesis with Bound States of Long-lived Charged Particles
• Neutralino Dark Matter Detection in Split Supersymmetry Scenarios
• Light Gravitinos as Mixed Dark Matter
• Right-handed Sneutrinos as Nonthermal Dark Matter
• Impact of Physical Principles at Very High Energy Scales on the Superparticle Mass Spectrum
• Dark Matter Halos with Cores from Hierarchical Structure Formation
• Relic abundance of dark matter in the minimal universal extra dimension model
• Exotic Collider Signals from the Complete Phase Diagram of Minimal Universal Extra Dimensions
• Minimal Universal Extra Dimensions
• Cosmological Constraints on Gravitino LSP Scenario with Sneutrino NLSP
• Neutrino masses and cosmic radiation density: Combined analysis
• Neutralino Warm Dark Matter
• Shape versus Volume: Making Large Flat Extra Dimensions Invisible
• Gravitino, Axino, Kaluza-Klein Graviton Warm and Mixed Dark Matter and Reionisation
• A Running Spectral Index in Supersymmetric Dark-Matter Models with Quasi-Stable Charged Particles
• Resolving Cosmic Gamma Ray Anomalies with Dark Matter Decaying Now
• Improved Treatment of Cosmic Microwave Background Fluctuations Induced by a Late-decaying Massive Neutrino
• Dark Matter from Gaugino Mediation
• Constraining Gravitino Dark Matter with the Cosmic Microwave Background
• Constraints on the Cosmological Relativistic Energy Density
• Increasing the Neutralino Relic Abundance with Slepton Coannihilations: Consequences for Indirect Dark Matter Detection
• Gravitons and Dark Matter in Universal Extra Dimensions
• Solving cosmological problem in universal extra dimension models by introducing Dirac neutrino
• Probing neutrino decays with the cosmic microwave background

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• $\nu \Lambda$MDM: A Model for Sterile Neutrino and Dark Matter Reconciles Cosmological and Neutrino Oscillation Data after BICEP2
• Model independent analysis of dark matter points to a particle mass at the keV scale
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• Dark Matter signals from Draco and Willman 1: Prospects for MAGIC II and CTA
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• XENON1T Anomaly and its Implication for Decaying Warm Dark Matter
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• Cosmological Constraints on Invisible Decay of Dark Matter
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• Self-interacting dark matter from late decays and the $H_0$ tension
• Cosmological Constraints on Decaying Dark Matter
• WIMP Dark Matter from Gravitino Decays and Leptogenesis
• Feebly Interacting $U(1{)}_{\mathrm{B}-\mathrm{L}}$ Gauge Boson Warm Dark Matter and XENON1T Anomaly
• Dark radiation and small-scale structure problems with decaying particles
• Cosmological Structure Formation in Decaying Dark Matter Models
• Degenerate Sub-keV Fermion Dark Matter from a Solution to the Hubble Tension
• Big-bang nucleosynthesis with a long-lived charged massive particle including ${}^4$He spallation processes
• The WIMP Paradigm: Theme and Variations
• Weak Gravitational Lensing as a Method to Constrain Unstable Dark Matter
• Confluence of Constraints in Gauge Mediation: The 125 GeV Higgs Boson and Goldilocks Cosmology
• Gravitino dark matter from increased thermal relic particles
• Degenerate Fermion Dark Matter from a Broken $U(1{)}_{\mathrm{B}-\mathrm{L}}$ Gauge Symmetry
• Gravitino Dark Matter with Weak-Scale Right-Handed Sneutrino
• The B-L Phase Transition: Implications for Cosmology and Neutrinos
• Allowed slepton intergenerational mixing in light of light element abundances
• Cosmic Microwave Background constraints of decaying dark matter particle properties
• Cusped Mass Density Profiles and Magnification Ratios of Double Image Gravitational Lenses
• R-invariant New Inflation Model vs Supersymmetric Standard Model
• Constraining decaying dark matter with BOSS data and the effective field theory of large-scale structures