The Atacama Cosmology Telescope: limits on dark matter-baryon interactions from DR4 power spectra

Abstract

Diverse astrophysical observations suggest the existence of cold dark matter that interacts only gravitationally with radiation and ordinary baryonic matter. Any nonzero coupling between dark matter and baryons would provide a significant step towards understanding the particle nature of dark matter. Measurements of the cosmic microwave background (CMB) provide constraints on such a coupling that complement laboratory searches. In this work we place upper limits on a variety of models for dark matter elastic scattering with protons and electrons by combining large-scale CMB data from the Planck satellite with small-scale information from Atacama Cosmology Telescope (ACT) DR4 data. In the case of velocity-independent scattering, we obtain bounds on the interaction cross section for protons that are 40\% tighter than previous constraints from the CMB anisotropy. For some models with velocity-dependent scattering we find best-fitting cross sections with a 2$\sigma$ deviation from zero, but these scattering models are not statistically preferred over $\Lambda$CDM in terms of model selection.

arXiv comment8 pages, 4 figures

References in corpus (40)

• The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: cosmological analysis of the DR12 galaxy sample
• Stable clustering, the halo model and nonlinear cosmological power spectra
• Axion Cosmology
• The Simons Observatory: Science goals and forecasts
• Cobaya: Code for Bayesian Analysis of hierarchical physical models
• The role of sterile neutrinos in cosmology and astrophysics
• The Atacama Cosmology Telescope: DR4 Maps and Cosmological Parameters
• The Cosmic Linear Anisotropy Solving System (CLASS) I: Overview
• CMB-S4 Science Case, Reference Design, and Project Plan
• Milky Way Satellite Census. III. Constraints on Dark Matter Properties from Observations of Milky Way Satellite Galaxies
• SPT-3G: A Next-Generation Cosmic Microwave Background Polarization Experiment on the South Pole Telescope
• Constraining Dark Matter-Baryon Scattering with Linear Cosmology
• The Atacama Cosmology Telescope: A Measurement of the Cosmic Microwave Background Power Spectra at 98 and 150 GHz
• Constraints on Sub-GeV Dark Matter-Electron Scattering from the DarkSide-50 Experiment
• The Atacama Cosmology Telescope: The polarization-sensitive ACTPol instrument
• Projected WIMP Sensitivity of the XENONnT Dark Matter Experiment
• SENSEI: First Direct-Detection Constraints on sub-GeV Dark Matter from a Surface Run
• Milky Way Satellite Census. II. Galaxy--Halo Connection Constraints Including the Impact of the Large Magellanic Cloud
• Early-Universe Constraints on Dark Matter-Baryon Scattering and their Implications for a Global 21cm Signal
• Probing sub-GeV Dark Matter-Baryon Scattering with Cosmological Observables
• Constraints on Large-Scale Dark Acoustic Oscillations from Cosmology
• Interacting Dark Sector and Precision Cosmology
• Constraints on scattering of keV--TeV dark matter with protons in the early Universe
• A Critical Assessment of CMB Limits on Dark Matter-Baryon Scattering: New Treatment of the Relative Bulk Velocity
• New Light Species and the CMB
• The Atacama Cosmology Telescope: Constraints on Pre-Recombination Early Dark Energy
• Search for Low-Mass Dark Matter with CDMSlite Using a Profile Likelihood Fit
• The promising future of a robust cosmological neutrino mass measurement
• Cosmic microwave background and large scale structure limits on the interaction between dark matter and baryons
• Dark Moments and the DAMA-CoGeNT Puzzle
• Cosmological Constraints on Dark Matter Interactions with Ordinary Matter
• First Cosmological Constraint on the Effective Theory of Dark Matter-Proton Interactions
• Future CMB tests of dark matter: ultra-light axions and massive neutrinos
• New limits on light dark matter - proton cross section from the cosmic large-scale structure
• Observational constraints on dark matter scattering with electrons
• Bounds on velocity-dependent dark matter-proton scattering from Milky Way satellite abundance
• Hints of dark matter-neutrino interactions in Lyman-$\alpha$ data
• Messengers from the Early Universe: Cosmic Neutrinos and Other Light Relics
• Data compression in cosmology: A compressed likelihood for Planck data
• Disentangling Dark Physics with Cosmic Microwave Background Experiments

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• Multipole vector dark matter below the GeV-scale
• The Glow of Axion Quark Nugget Dark Matter: (I) Large Scale Structures
• Sensitivity of the Global 21-cm Signal to Dark Matter-Baryon Scattering
• The Simons Observatory: impact of bandpass, polarization angle and calibration uncertainties on small-scale power spectrum analysis
• Weak Lensing Constraints on Dark Matter-Baryon Interactions with $N$-Body Simulations and Machine Learning
• Probing levitodynamics with multi-stochastic forces and the simple applications on the dark matter detection in optical levitation experiment
• Dark Secrets of Baryons: Illuminating Dark Matter-Baryon Interactions with JWST
• Search for H2 cloudlets in our backyard