Can we discover dual-component thermal WIMP dark matter?

Abstract

We address the question of whether the upcoming generation of dark matter search experiments and colliders will be able to discover if the dark matter in the Universe has two components of weakly interacting massive particles (WIMPs). We outline a model-independent approach, and we study the specific cases of (1) direct detection with low-background 1 ton noble-gas detectors and (2) a 0.5 TeV center of mass energy electron-positron linear collider. We also analyze the case of indirect detection via two gamma-ray lines, which would provide a verification of such a discovery, although multiple gamma-ray lines can in principle originate from the annihilation of a single dark matter particle. For each search "channel", we outline a few assumptions to relate the very small set of parameters we consider (defining the masses of the two WIMPs and their relative abundance in the overall dark matter density) with the relevant detection rates. We then draw general conclusions on which corners of a generic dual-component dark matter scenario can be explored with current and next generation experiments. We find that in all channels the ideal setup is one where the relative mass splitting between the two WIMP species is of order 1, and where the two dark matter components contribute in a ratio close to 1:1 to the overall dark matter content of the Universe. Interestingly, in the case of direct detection, future experiments might detect multiple states even if only ~ 10% of the energy-density of dark matter in the Universe is in the subdominant species.

44 pages, 16 figures, revised version published in JCAP

References in corpus (27)

• Observation of an anomalous positron abundance in the cosmic radiation
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Likelihoods and Parameters from the WMAP data
• First results from DAMA/LIBRA and the combined results with DAMA/NaI
• Measurement of the Cosmic Ray e+ plus e- spectrum from 20 GeV to 1 TeV with the Fermi Large Area Telescope
• The WIMPless Miracle: Dark Matter Particles without Weak-scale Masses or Weak Interactions
• Sterile neutrinos: the dark side of the light fermions
• Axions as Dark Matter Particles
• Dark Matter and Collider Phenomenology of Universal Extra Dimensions
• Significant Gamma Lines from Inert Higgs Dark Matter
• On possible interpretations of the high energy electron-positron spectrum measured by the Fermi Large Area Telescope
• Multi-Component Dark Matter
• Abelian Hidden Sectors at a GeV
• Pre-launch estimates for GLAST sensitivity to Dark Matter annihilation signals
• Fitting the Gamma-Ray Spectrum from Dark Matter with DMFIT: GLAST and the Galactic Center Region
• (In)visible Z' and dark matter
• Accurate Mass Determinations in Decay Chains with Missing Energy
• Conservative Constraints on Dark Matter Annihilation into Gamma Rays
• A Supersymmetric U(1)' Model with Multiple Dark Matters
• The WIMP Forest: Indirect Detection of a Chiral Square
• Indirect detection of light neutralino dark matter in the NMSSM
• Extracting the Gamma Ray Signal from Dark Matter Annihilation in the Galactic Center Region
• Precise reconstruction of sparticle masses without ambiguities
• Search with EGRET for a Gamma Ray Line from the Galactic Center
• Determining the WIMP mass using the complementarity between direct and indirect searches and the ILC
• Accurate Mass Determinations in Decay Chains with Missing Energy: II
• Optimal angular window for observing Dark Matter annihilation from the Galactic Center region: the case of gamma-ray lines
• Multi-messenger constraints on the annihilating dark matter interpretation of the positron excess

Cited by in corpus (69)

• (In)direct Detection of Boosted Dark Matter
• Semi-annihilation of Dark Matter
• A Next-Generation Liquid Xenon Observatory for Dark Matter and Neutrino Physics
• Dynamical Dark Matter: II. An Explicit Model
• Dark Matter Particle Spectroscopy at the LHC: Generalizing MT2 to Asymmetric Event Topologies
• Assisted freeze-out
• Two-Component Dark Matter
• Dark Discrete Gauge Symmetries
• Strong phase transition, dark matter and vacuum stability from simple hidden sectors
• Multicomponent Dark Matter in Supersymmetric Hidden Sector Extensions
• Detecting Boosted Dark Matter from the Sun with Large Volume Neutrino Detectors
• A minimal model for two-component dark matter
• A Possible Explanation of Low Energy $\gamma$-ray Excess from Galactic Centre and Fermi Bubble by a Dark Matter Model with Two Real Scalars
• Multiple dark matter scenarios from ubiquitous stringy throats
• Multicomponent Dark Matter from Gauge Symmetry
• Multi-Component Dark Matter: the vector and fermion case
• Overcoming Velocity Suppression in Dark-Matter Direct-Detection Experiments
• On the direct detection of multi-component dark matter: sensitivity studies and parameter estimation
• Two-component dark matter and a massless neutrino in a new B-L model
• Non-Abelian Discrete Dark Matter
• Multi-component scalar dark matter from a $Z_N$ symmetry: a systematic analysis
• Multi-Component Dark Matter in a Non-Abelian Dark Sector
• Direct Detection of Dynamical Dark Matter
• Two dark matter candidates: the case of inert doublet and singlet scalars
• A Dark Matter Model with Non-Abelian Gauge Symmetry
• Minimal Two-component Scalar Doublet Dark Matter with Radiative Neutrino Mass
• Hadronic and hadron-like physics of Dark Matter
• A tale of dark matter capture, sub-dominant WIMPs, and neutrino observatories
• A Two-Component Dark Matter Model and its Associated Gravitational Waves
• Is the dark matter particle its own antiparticle?
• Enhancement of dark matter relic density from the late time dark matter conversions
• Shining dark matter in Xenon1T
• Type III Seesaw for Neutrino Masses in $U(1{)}_{B-L}$ Model with Multi-component Dark Matter
• On the direct detection of multi-component dark matter: implications of the relic abundance
• Strategies for Probing Non-Minimal Dark Sectors at Colliders: The Interplay Between Cuts and Kinematic Distributions
• Systematic U(1)_{B-L} Extensions of Loop-Induced Neutrino Mass Models with Dark Matter
• Fermion and scalar two-component dark matter from a $Z_4$ symmetry
• Electroweak phase transition and gravitational waves in a two-component dark matter model
• Two Component Feebly Interacting Massive Particle (FIMP) Dark Matter
• One-loop Dirac neutrino mass and mixed axion/WIMP dark matter
• A two-component vector WIMP -- fermion FIMP dark matter model with an extended seesaw mechanism
• Time-dependent rate of multicomponent dark matter: Reproducing the DAMA/LIBRA phase-2 results
• The $Z_7$ model of three-component scalar dark matter
• Phenomenology of doublet-triplet fermionic dark matter in nonstandard cosmology and multicomponent dark sectors
• Two-component scalar dark matter in $Z_{2n}$ scenarios
• A Model For Late Dark Matter Decay
• A Minimal Model For Two-Component FIMP Dark Matter: A Basic Search
• The Supersymmetric Standard Models with Decay and Stable Dark Matters
• Non-Minimal Dark Sectors: Mediator-Induced Decay Chains and Multi-Jet Collider Signatures
• An Analytic Approach to Light Dark Matter Propagation
• Multi-component Dark Sectors: Symmetries, Asymmetries and Conversions
• Radiative Two-Loop Neutrino Masses with Dark Matter
• Probing sub-GeV leptophilic dark matter at Belle II and NA64
• Simplified dark matter models with loop effects in direct detection and the constraints from indirect detection and collider search
• Gravitational wave effects and phenomenology of a two-component dark matter model
• Electroweak Symmetry Breaking and WIMP-FIMP Dark Matter
• Prospecting bipartite Dark Matter through Gravitational Waves
• $U(1)$-charged Dark Matter in three-Higgs-doublet models
• Inflation and Dark Matter in the $Z_5$ Model
• Gravitational wave signatures of first-order phase transition in two-component dark matter model
• Dark matter conversion as a source of boost factor for explaining the cosmic ray positron and electron excesses
• Right-handed sneutrino and gravitino multicomponent dark matter in light of neutrino detectors
• Spin Trio: a dark matter scenario
• Two-component Dark Matter and low scale Thermal Leptogenesis
• Exploring two component doublet dark matter
• From oversimplified to overlooked: the case for exploring Rich Dark Sectors
• Neutrino mass and the Higgs portal dark matter in the ESSFSM
• Interpretation of the Galactic gamma-ray excess with the dark matter indicated by ${}^8$Be and ${}^4$He anomalous transitions
• Theoretical and Experimental Constraints on ${\mathbb{Z}}_{2n}$ Multi-Component Dark Matter Models