WISPy Cold Dark Matter

Abstract

Very weakly interacting slim particles (WISPs), such as axion-like particles (ALPs) or hidden photons (HPs), may be non-thermally produced via the misalignment mechanism in the early universe and survive as a cold dark matter population until today. We find that, both for ALPs and HPs whose dominant interactions with the standard model arise from couplings to photons, a huge region in the parameter spaces spanned by photon coupling and ALP or HP mass can give rise to the observed cold dark matter. Remarkably, a large region of this parameter space coincides with that predicted in well motivated models of fundamental physics. A wide range of experimental searches -- exploiting haloscopes (direct dark matter searches exploiting microwave cavities), helioscopes (searches for solar ALPs or HPs), or light-shining-through-a-wall techniques -- can probe large parts of this parameter space in the foreseeable future.

v2: Labels of figure 2 corrected, new text in section 4 added, 29 pages, 4 figures. Final version accepted for publication in JCAP

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• QCD axions and axionlike particles in a two-inflation scenario
• Very Light Asymmetric Dark Matter
• Constraints on Bosonic Dark Matter with Low Threshold Germanium Detector at Kuo-Sheng Reactor Neutrino Laboratory
• Searching for Axion-Like Particles from Core-Collapse Supernovae with Fermi LAT's Low Energy Technique
• Constraining Light Dark Photons from GW190517 and GW190426_152155
• Probing $\mu$eV ALPs with future LHAASO observation of AGN $\gamma$-ray spectra
• Diffuse axion-like particle searches
• Absorption of Vector Dark Matter Beyond Kinetic Mixing
• Stochastic gravitational wave background: birth from string-wall death
• Leading Logs in QCD Axion Effective Field Theory
• Highly Excited Electron Cyclotron for QCD Axion and Dark-Photon Detection
• Axion star condensation around primordial black holes and microlensing limits
• New Limits on Leptophilic Axionlike Particles and Majorons from ArgoNeuT
• In Situ Measurements of Dark Photon Dark Matter Using Parker Solar Probe: Going beyond the Radio Window
• First Axion-Like Particle Results from a Broadband Search for Wave-Like Dark Matter in the 44 to 52 $\mu$eV Range with a Coaxial Dish Antenna
• Tera-Zooming in on light (composite) axion-like particles
• Cross-correlation measurement techniques for cavity-based axion and weakly interacting slim particle searches
• Getting More Out of Black Hole Superradiance: a Statistically Rigorous Approach to Ultralight Boson Constraints from Black Hole Spin Measurements
• Isotropic cosmic birefringence from string axion domain walls without cosmic strings, and DESI results
• Dark Matter from Entropy Perturbations in Curved Field Space
• Early-time thermalization of cosmic components? A hint for solving cosmic tensions
• Solar radio emissions and ultralight dark matter
• Non-perturbative over-production of axion-like-particles (ALPs) via derivative interaction
• Axion dark matter with thermal friction
• Probing new fundamental fields with Extreme Mass Ratio Inspirals
• Phenomenology of wavelike vector dark matter nonminimally coupled to gravity
• Shaping Dark Photon Spectral Distortions
• Search for continuous gravitational wave signals from luminous dark photon superradiance clouds with LVK O3 observations
• Searching for heavy neutral leptons coupled to axion-like particles at the LHC far detectors and SHiP
• Constraints on hidden gravitons from fifth-force experiments and stellar energy loss
• Listening for Dark Photon Radio from the Galactic Centre
• Axion-Like Particle Searches with IACTs
• Asteroids for ultralight dark-photon dark-matter detection
• The Muon Magnetic Moment and Physics Beyond the Standard Model
• Shining ALP Dark Radiation
• Anomaly-free axion dark matter in three Higgs doublet model and its phenomenological implications
• The Photon Spectrum of Asymmetric Dark Stars
• Probing ultra-light dark photon from inverse Compton-like scattering
• Gravitational Positivity for Phenomenologists: Dark Gauge Boson in the Swampland
• Searching for Axino-Like Particle at Fixed Target Experiments
• Dark photon constraints from a 7.139 GHz cavity haloscope experiment
• Minimal solution to the axion isocurvature problem from a nonminimal coupling
• Neutrino Emissivities as a Probe of the Internal Magnetic Fields of White Dwarfs
• WISPers from the Dark Side: Radio Probes of Axions and Hidden Photons
• General Markovian Equation for Scalar Fields in a Slowly Evolving Background
• Dark Matter from Dark Glueball Dominance
• Hidden Photons in Aharonov-Bohm-Type Experiments
• Dark photon dark matter and fast radio bursts
• Leptophilic Axion-like Particles at Forward Detectors
• Impedance Matching to Axion Dark Matter: Considerations of the Photon-Electron Interaction
• GRB 221009A: Spectral signatures based on ALPs candidates
• Axion-like Particle Effects on Photon Polarization in High-Energy Astrophysics
• Dark Sector first results at Belle II
• Interacting dark energy axions in light of the Hubble tension
• Time-domain properties of electromagnetic signals in a dynamical axion background
• Probing axion dark matter with 21cm fluctuations from minihalos
• Condensation of Galactic Cold Dark Matter
• Misalignment production of vector boson dark matter from axion-SU(2) inflation
• Axion-like dark matter clouds around rotating black holes
• Thermal and nonthermal dark matters with gravitational neutrino reheating
• A sensitive search for unknown spectral emission lines in the diffuse X-ray background with XMM-Newton
• Axion Like Particles and the Inverse Seesaw Mechanism
• Freezing-in the Pure Dark Axion Portal
• Design and Calibration of the 34 GHz Yale Microwave Cavity Experiment
• Probing the axion-photon coupling with space-based gravitational waves detectors
• Detecting Ultralight Dark Matter with Matter Effect
• Superradiant Searches for Dark Photons in Two Stage Atomic Transitions
• Relevance of photon-photon dispersion within the jet for blazar axionlike particle searches
• Future targets for light gauge bosons from cosmic strings
• Type-II Majoron Dark Matter
• A first application of machine and deep learning for background rejection in the ALPS II TES detector
• Ultralight Particle Dark Matter
• Axion production from primordial magnetic fields
• Dark matter Axion search with riNg Cavity Experiment DANCE: Design and development of auxiliary cavity for simultaneous resonance of linear polarizations
• Parametrizing modified gravities with vector degrees of freedom: anisotropic growth and lensing
• Search for an interaction mediated by axion-like particles with ultracold neutrons at the PSI
• Constraints for scalars and pseudoscalars from ${\left(g-2\right)}_l$ and existing $e^{+}{e}^{-}$ colliders
• Singlet fermion dark matter and Dirac neutrinos from Peccei-Quinn symmetry
• A Ramsey Neutron-Beam Experiment to Search for Ultralight Axion Dark Matter at the ESS
• Axions in Andromeda: Searching for Minicluster -- Neutron Star Encounters with the Green Bank Telescope
• Sub-MeV Bosonic Dark Matter, Misalignment Mechanism and Galactic Dark Matter Halo Luminosities
• The Gravity of Dark Vortices: Effective Field Theory for Branes and Strings Carrying Localized Flux
• Co-Interacting Dark Matter
• Photon self-energy at all temperatures and densities in all of phase space
• B-field induced mixing between Langmuir waves and axions
• Gauge see-saw: A mechanism for a light gauge boson
• Search for low-mass resonances decaying into two jets and produced in association with a photon or a jet at $\sqrt{s}=13$ TeV with the ATLAS detector
• Search for hidden-photon dark matter with the FUNK experiment
• Ultimate light-shining-through-a-wall experiments to establish QCD axions as the dominant form of dark matter
• Resolving the QCD Axion Domain Wall Problem with a Light Axion
• Search for Dark Photon Dark Matter in the Mass Range 41--74 $\mu \mathrm{eV}$ using Millimeter-Wave Receiver and Radioshielding Box
• Do neutrinos bend? Consequences of an ultralight gauge field as dark matter
• Theoretical Calculation of coherent Laue-case conversion between X rays and ALPs for an X-ray LSW experiment
• Cosmic Birefringence as a probe of dark matter nature: Sterile neutrino and dipolar dark matter
• The imprint of ultralight vector fields on gravitational wave propagation
• Insights on the Cosmic Origin of Matter from Proton Stability
• Black-hole hair from vector dark matter accretion
• Relic Density of Axion Dark Matter in Standard and Non-Standard Cosmological Scenarios
• Upcoming searches for decaying dark matter with ULTRASAT ultraviolet maps
• SU(2) Chern-Simons Theory Coupled to Competing Scalars
• Improved constraints for axion-like particles from 3-photon events at $e^{+}{e}^{-}$ colliders
• What's new in ALPS-II
• Direct Detection of Axion-Like Particles in Bismuth-Based Topological Insulators
• GALILEO: Galactic Axion Laser Interferometer Leveraging Electro-Optics
• Looking for dark matter on the light side
• WIMP dark matter in bulk viscous non-standard cosmologies
• Adiabatic Conversion of ALPs into Dark Photon Dark Matter
• Strong Constraints on Dark Photon and Scalar Dark Matter Decay from INTEGRAL and AMS-02 data
• Thermomagnetic Ettingshausen-Nernst effect in tachocline and axion mechanism of solar luminosity variations
• Dish Antenna Searches for WISPy Dark Matter: Directional Resolution Small Mass Limitations
• Particle dispersion in the classical vector dark matter background
• Cavity as Radio Telescope for Galactic Dark Photon
• Multimessenger signals from compact axion star mergers
• Inverse Primakoff Scattering for Axionlike Particle Coupling
• Unlocking Discovery Potential for Decaying Dark Matter and Faint X-ray Sources with XRISM
• Hidden Photon and Axion Dark Matter from Symmetry Breaking
• Analytic approach to axion-like-particle emission in core-collapse supernovae
• Ultralight vector dark matter, anisotropies and cosmological adiabatic modes
• Constraining dark photon properties with Asteroseismology
• An Emergent Solution to the Strong CP Problem
• Cosmological perturbations with ultralight vector dark matter fields: numerical implementation in CLASS
• Gravitational Signatures of Axion Dark Matter via Parity-Violating Interactions
• Amplifying Non-Resonant Production of Dark Sector Particles in Scattering Dominance Regime
• Light-shinning-through-thin-wall radio frequency cavities for probing dark photon
• Flavour anomalies and dark matter assisted unification in $SO(10)$ GUT
• First observation and analysis of DANCE: Dark matter Axion search with riNg Cavity Experiment
• Axion-like particle searches with MeerKAT and SKA
• Lyman-$\alpha$ limit on axion-like cold dark matter
• Primordial Black Holes and Second-order Gravitational Waves in Axion-like Hybrid Inflation
• Sub-GeV Dark Matter Direct Detection with Neutrino Observatories
• Directional search for light dark matter with quantum sensors
• Dark photon dark matter from flattened axion potentials
• Decaying Dark Matter in Halos of Primordial Black Holes
• Black Holes in Magnetic Monopoles with a Dark Halo
• Vortices in a generalized Maxwell-Higgs model with visible and hidden sectors
• Constraints on scalar coupling to electromagnetism
• Parametric Resonance and Dark Matter Axion-Like Particles
• Monthly Modulation in Dark Matter Direct-Detection Experiments
• Visible and hidden sectors in a model with Maxwell and Chern-Simons gauge dynamics
• Hints of new physics from stars
• Axion mechanism of Sun luminosity: light shining through the solar radiation zone
• Generation of effective massive Spin-2 fields through spontaneous symmetry breaking of scalar field
• Star Shearing Season -- Transient Signals in Wave-like Dark Matter Experiments from Black Hole Formation
• On the production of heavy axion-like particles in the accretion disks of gamma-ray bursts
• Ultralight dark matter detection with trapped-ion interferometry
• Potential of SKA to Detect CDM ALPs with Radio Astronomy
• Invisible neutron decay and light BSM particles
• Probing Non-Minimal Dark Sectors via the 21 cm Line at Cosmic Dawn
• Exploring the viability of pseudo Nambu-Goldstone boson as ultralight dark matter in a mass range relevant for strong gravity applications
• Signature of polarized ultralight vector dark matter in pulsar timing arrays
• Dark Matter and Fundamental Physics Searches with IACTs
• Solar System Experiments in the Search for Dark Energy and Dark Matter
• Exploring Ultralight Scalar Assistance in Sterile Neutrino Dark Matter: Cold Spectrum and Unusual X/Gamma-ray Signatures
• Sensitivity forecasts for gravitational-wave detectors to dark matter decaying into gravitons
• Embedding of the Georgi-Glashow $SU(5)$ model in the superconformal algebra
• Searching for axion-like particles with SPHEREx
• The radiation emitted from axion dark matter in a homogeneous magnetic field, and possibilities for detection
• Constraints on axionlike particles from 16.5 years of Fermi-LAT data and prospects for VLAST
• Prospects for High-Frequency Gravitational-Wave Detection with GEO600
• Non-minimally coupled Scalar Dark Matter from Inflationary Fluctuations
• Probing ALP-portal fermionic dark matter at the $e^{+}{e}^{-}$ colliders
• Fermions in $(1+2)$-dimensions modified by nonminimal coupling and its applications to condensed matter physics
• Dark photon constraints using the UHE gamma-ray emission from galactic sources. A Phenomenological Study
• Cold Dark Matter from the Hidden Sector
• Fundamental fields around compact objects: Massive spin-2 fields, Superradiant instabilities and Stars with dark matter cores
• Structure Formation Limits on Axion-Like Dark Matter
• Post-Inflationary Quenched Production of Axion SU(2) Dark Matter
• Fermion zero modes in the vortex background of a Chern-Simons-Higgs theory with a hidden sector
• An introduction to axions and their detection
• Classical Casimir pressure in the presence of axion dark matter
• Vector dark matter production during inflation in the gradient-expansion formalism
• Ultralight Dark Matter from the Edge of Field Space
• Revisiting the evidences for spectral anomalies in distant blazars: new data on the photon-ALP mixing
• First constraints on axion-like particles from Galactic sub-PeV gamma rays
• Solar Axion search with Micromegas detectors in the CAST Experiment with ${}^3$He as buffer gas
• Induced cosmological anisotropy by a gauge-gravity interaction
• INTEGRAL, eROSITA and Voyager Constraints on Light Bosonic Dark Matter: ALPs, Dark Photons, Scalars, $B-L$ and $L_i-L_j$ Vectors
• Supplying Dark Energy from Scalar Field Dark Matter
• Photon self-interaction through gravitons and axions
• Sensitivity to Axion-like Particle dark matter with very-high-energy gamma-ray observations of Active Galactic Nuclei located behind Galaxy Clusters
• The Dark Photon: a 2026 Perspective
• Beyond thermal approximations: Precise cosmological bounds on Axion-Like Particles
• Search for Axion-Like Particles from Nearby Pre-Supernova Stars
• Low-frequency radio telescopes sensitivity to light dark matter
• Galactic magnetic fields seeded by ultralight dark photons
• Follow-up Search for a Tentative Dark Photon Signal Near 19.5 $\mu$eV using ORGAN-Q infrastructure
• Dynamically generated tilt of isocurvature fluctuations
• Sifting composite from elementary models at FCCee and CePC
• Search for Dark Photons between 16.96--19.52 $\mu$eV with the HAYSTAC Experiment
• Searching for dark photon dark matter from terrestrial magnetic fields
• The Impact of Axion-Like Particles on Late Stellar Evolution From Intermediate-Mass Stars to core-collapse Supernova Progenitors
• Axion-like Particles and their Possible Impact on the Very High-Energy Spectrum of M87 Observed by LHAASO
• Dark photon dark matter constraints at the Taiwan axion search experiment with haloscope
• Thermomagnetic Ettingshausen-Nernst effect in tachocline, magnetic reconnection phenomenon in lower layers, axion mechanism of solar luminosity variations, coronal heating problem solution and mechanism of ADM variations around BH
• Sensitivity of a Gigahertz Fabry-Pérot Resonator for Axion Dark Matter Detection
• Axion dark matter detection via shift current
• Searching for Dark Photons with Existing Haloscope Data
• Boson dark matter halos with a dominant noncondensed component
• Detection of collinear high energetic di-photon signatures with Micromegas Detectors
• Domain Wall Model in the Galactic Bose-Einstein Condensate Halo
• Improved modelling for dark photon detection with dish antennas
• Scalable Dark Matter Searches Using Integrated Photonics
• Axion detection with phonon-polaritons revisited
• Distinguishing between dark-matter interactions with gravitational-wave detectors
• Axion-Like Particle Dark Matter Intensity Mapping: A New Probe via Cross-Correlation with Galaxy Surveys