Euclid preparation. Sensitivity to non-standard particle dark matter model

Abstract

The Euclid mission of the European Space Agency will provide weak gravitational lensing and galaxy clustering surveys that can be used to constrain the standard cosmological model and its extensions, with an opportunity to test the properties of dark matter beyond the minimal cold dark matter paradigm. We present forecasts from the combination of these surveys on the parameters describing four interesting and representative non-minimal dark matter models: a mixture of cold and warm dark matter relics; unstable dark matter decaying either into massless or massive relics; and dark matter experiencing feeble interactions with relativistic relics. We model these scenarios at the level of the non-linear matter power spectrum using emulators trained on dedicated N-body simulations. We use a mock Euclid likelihood to fit mock data and infer error bars on dark matter parameters marginalised over other parameters. We find that the Euclid photometric probe (alone or in combination with CMB data from the Planck satellite) will be sensitive to the effect of each of the four dark matter models considered here. The improvement will be particularly spectacular for decaying and interacting dark matter models. With Euclid, the bounds on some dark matter parameters can improve by up to two orders of magnitude compared to current limits. We discuss the dependence of predicted uncertainties on different assumptions: inclusion of photometric galaxy clustering data, minimum angular scale taken into account, modelling of baryonic feedback effects. We conclude that the Euclid mission will be able to measure quantities related to the dark sector of particle physics with unprecedented sensitivity. This will provide important information for model building in high-energy physics. Any hint of a deviation from the minimal cold dark matter paradigm would have profound implications for cosmology and particle physics.

31 pages, 21 figures

References in corpus (93)

• Simulating the joint evolution of quasars, galaxies and their large-scale distribution
• Particle Dark Matter: Evidence, Candidates and Constraints
• LSST: from Science Drivers to Reference Design and Anticipated Data Products
• The Cosmic Linear Anisotropy Solving System (CLASS) II: Approximation schemes
• Observational evidence for self-interacting cold dark matter
• Stable clustering, the halo model and nonlinear cosmological power spectra
• Dark Matter Candidates from Particle Physics and Methods of Detection
• Sterile Neutrinos as Dark Matter
• Tensions between the Early and the Late Universe
• Revising the Halofit Model for the Nonlinear Matter Power Spectrum
• Halo Formation in Warm Dark Matter Models
• Massive neutrinos and cosmology
• KiDS-1000 Cosmology: Cosmic shear constraints and comparison between two point statistics
• Euclid. I. Overview of the Euclid mission
• The linear power spectrum of observed source number counts
• What galaxy surveys really measure
• The $H_0$ Olympics: A fair ranking of proposed models
• Hidden Charged Dark Matter
• Lyman-alpha constraints on warm and on warm-plus-cold dark matter models
• The Cosmic Linear Anisotropy Solving System (CLASS) IV: Efficient implementation of non-cold relics
• New Perspective on Galaxy Clustering as a Cosmological Probe: General Relativistic Effects
• Massive Neutrinos and the Non-linear Matter Power Spectrum
• HMcode-2020: Improved modelling of non-linear cosmological power spectra with baryonic feedback
• Constraining Dark Matter-Baryon Scattering with Linear Cosmology
• Effect of Photometric Redshift Uncertainties on Weak Lensing Tomography
• ETHOS - An Effective Theory of Structure Formation: From dark particle physics to the matter distribution of the Universe
• Large Scale Structure Tests of Warm Dark Matter
• A new method to quantify the effects of baryons on the matter power spectrum
• Constraining Dark Matter candidates from structure formation
• The BACCO Simulation Project: Exploiting the full power of large-scale structure for cosmology
• A fresh look at linear cosmological constraints on a decaying dark matter component
• Simultaneous measurement of cosmology and intrinsic alignments using joint cosmic shear and galaxy number density correlations
• Late universe decaying dark matter can relieve the H_0 tension
• Quantifying baryon effects on the matter power spectrum and the weak lensing shear correlation
• Non-Abelian dark matter and dark radiation
• The impact of baryons on the matter power spectrum from the Horizon-AGN cosmological hydrodynamical simulation
• Realistic sterile neutrino dark matter with keV mass does not contradict cosmological bounds
• Constraints on Dark Matter interactions from structure formation: Damping lengths
• Interacting Dark Sector and Precision Cosmology
• Exploring the effects of galaxy formation on matter clustering through a library of simulation power spectra
• Euclid preparation: IX. EuclidEmulator2 -- Power spectrum emulation with massive neutrinos and self-consistent dark energy perturbations
• Constraining Dark Matter-Neutrino Interactions using the CMB and Large-Scale Structure
• Neutrino masses and cosmological parameters from a Euclid-like survey: Markov Chain Monte Carlo forecasts including theoretical errors
• Evidence for dark matter interactions in cosmological precision data?
• Precision calculations of the cosmic shear power spectrum projection
• "Non-cold" dark matter at small scales: a general approach
• Alleviating the $H_0$ and ${\sigma }_8$ anomalies with a decaying dark matter model
• Beyond the Linear-Order Relativistic Effect in Galaxy Clustering: Second-Order Gauge-Invariant Formalism
• Strongest model-independent bound on the lifetime of Dark Matter
• Euclid. III. The NISP Instrument
• Reconciling Planck results with low redshift astronomical measurements
• Constraining Dark Matter -- Dark Radiation interactions with CMB, BAO, and Lyman-$\alpha$
• Cosmic microwave background and large scale structure limits on the interaction between dark matter and baryons
• Decaying dark matter and the tension in ${\sigma }_8$
• Euclid. II. The VIS Instrument
• Hints on the Nature of Dark Matter from the Properties of Milky Way Satellites
• The inner structure of haloes in Cold+Warm dark matter models
• Novel constraints on non-cold (non-thermal) Dark Matter from Lyman-$\alpha$ forest data
• Dark matter component decaying after recombination: lensing constraints with Planck data
• Emulation of baryonic effects on the matter power spectrum and constraints from galaxy cluster data
• Diversity in density profiles of self-interacting dark matter satellite halos
• WMAP Constraints on Decaying Cold Dark Matter
• Cosmological constraints on multi-interacting dark matter
• Linear cosmological constraints on 2-body decaying dark matter scenarios and the $S_8$ tension
• Baryonic effects for weak lensing. Part II. Combination with X-ray data and extended cosmologies
• Euclid preparation: XIX. Impact of magnification on photometric galaxy clustering
• Fitting the nonlinear matter bispectrum by the Halofit approach
• Late-time decaying dark matter: constraints and implications for the $H_0$-tension
• Constraining baryonic feedback and cosmology with weak-lensing, X-ray, and kinematic Sunyaev-Zeldovich observations
• Signatures of Self-Interacting Dark Matter in the Matter Power Spectrum and the CMB
• Updated constraints on decaying cold dark matter
• The full Boltzmann hierarchy for dark matter-massive neutrino interactions
• Hints of dark matter-neutrino interactions in Lyman-$\alpha$ data
• Fully relativistic treatment of light neutrinos in $N$-body simulations
• Cold dark matter plus not-so-clumpy dark relics
• Dark matter component decaying after recombination: Sensitivity to BAO and RSD probes
• Full-shape BOSS constraints on dark matter interacting with dark radiation and lifting the $S_8$ tension
• Evolution of perturbations and cosmological constraints in decaying dark matter models with arbitrary decay mass products
• Mixed dark matter: matter power spectrum and halo mass function
• Fractional Dark Matter decay: cosmological imprints and observational constraints
• Euclid preparation. Sensitivity to neutrino parameters
• Comprehensive Study of Neutrino-Dark Matter Mixed Damping
• Developing a unified pipeline for large-scale structure data analysis with angular power spectra -- I. The importance of redshift-space distortions for galaxy number counts
• Reionization and dark matter decay
• Constraining dark matter decays with cosmic microwave background and weak lensing shear observations
• The effective gravitational decoupling between dark matter and the CMB
• Probing the two-body decaying dark matter scenario with weak lensing and the cosmic microwave background
• Hints of Neutrino Dark Matter scattering in the CMB? Constraints from the Marginalized and Profile Distributions
• The cosmological simulation code $\mathrm{CO}N\mathrm{CEPT}1.0$
• Exact treatment of weak dark matter-baryon scattering for linear-cosmology observables
• Fast likelihood-free inference in the LSS Stage IV era
• Euclid preparation. XXXIV. The effect of linear redshift-space distortions in photometric galaxy clustering and its cross-correlation with cosmic shear
• Constraining Hot Dark Matter Sub-Species with Weak Lensing and the Cosmic Microwave Background Radiation

Cited by in corpus (2)

• The Effective Field Theory of Large Scale Structure for Mixed Dark Matter Scenarios
• A frequentist view on the two-body decaying dark matter model