Investigation of CMB constraints for dark matter-helium scattering

Abstract

We study dark matter-helium scattering in the early Universe and its impact on constraints from cosmic microwave background (CMB) anisotropy measurements. We describe possible theoretical frameworks for dark matter-nucleon interactions via a scalar, pseudoscalar, or vector mediator; such interactions give rise to hydrogen and helium scattering, with cross sections that have a power-law dependence on relative velocity. Within these frameworks, we consider three scenarios: dark matter coupling to only neutrons, to only protons, and to neutrons and protons with equal strength. For these various cases, we use \textit{Planck} 2018 temperature, polarization, and lensing anisotropy data to place constraints on dark matter scattering with hydrogen and/or helium for dark matter masses between 10 keV and 1 TeV. For any model that permits both helium and hydrogen scattering with a non-negative power-law velocity dependence, we find that helium scattering dominates the constraint for dark matter masses well above the proton mass. Furthermore, we place the first CMB constraints on dark matter that scatters dominantly/exclusively with helium in the early Universe.

arXiv comment11 pages, 1 figure, 2 tables; v2: matches published version

References in corpus (45)

• Cosmological parameters from CMB and other data: a Monte-Carlo approach
• The Cosmic Linear Anisotropy Solving System (CLASS) II: Approximation schemes
• Cosmological Perturbation Theory in the Synchronous and Conformal Newtonian Gauges
• Cosmological Perturbation Theory in the Synchronous vs. Conformal Newtonian Gauge
• The Simons Observatory: Science goals and forecasts
• Planck 2018 results. V. CMB power spectra and likelihoods
• Cobaya: Code for Bayesian Analysis of hierarchical physical models
• Efficient sampling of fast and slow cosmological parameters
• Excess Electronic Recoil Events in XENON1T
• Observation of Anomalous Internal Pair Creation in ${}^8$Be: A Possible Signature of a Light, Neutral Boson
• Hunting All the Hidden Photons
• Constraining Dark Matter-Baryon Scattering with Linear Cosmology
• Dark-Matter Electric and Magnetic Dipole Moments
• Isospin-Violating Dark Matter
• Tools for model-independent bounds in direct dark matter searches
• Dark Matter Interpretation of the Neutron Decay Anomaly
• Protophobic Fifth Force Interpretation of the Observed Anomaly in ${}^8$Be Nuclear Transitions
• Early-Universe Constraints on Dark Matter-Baryon Scattering and their Implications for a Global 21cm Signal
• Particle Physics Models for the 17 MeV Anomaly in Beryllium Nuclear Decays
• Probing sub-GeV Dark Matter-Baryon Scattering with Cosmological Observables
• 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
• Constraining Dark Matter-Neutrino Interactions using the CMB and Large-Scale Structure
• Interacting Dark Matter disguised as Warm Dark Matter
• Search for composite dark matter with optically levitated sensors
• New weakly-coupled forces hidden in low-energy QCD
• Leptophobic Dark Matter at Neutrino Factories
• Big Bang Darkleosynthesis
• Cosmic microwave background and large scale structure limits on the interaction between dark matter and baryons
• Using the CMB angular power spectrum to study Dark Matter-photon interactions
• Dark matter-neutrino interactions through the lens of their cosmological implications
• Cosmological Constraints on Dark Matter Interactions with Ordinary Matter
• First Cosmological Constraint on the Effective Theory of Dark Matter-Proton Interactions
• (Not as) Big as a Barn: Upper Bounds on Dark Matter-Nucleus Cross Sections
• Electroweak Precision Tests of the Standard Model after the Discovery of the Higgs Boson
• Observational constraints on dark matter scattering with electrons
• GeV-scale dark matter: production at the Main Injector
• Prospects of Migdal Effect in the Explanation of XENON1T Electron Recoil Excess
• Charged Fermions Below 100 GeV
• Atomki anomaly and dark matter in a radiative seesaw model with gauged $B-L$ symmetry
• New Experimental Constraints in a New Landscape for Composite Dark Matter
• Constraints on $\gamma$-CDM interactions matching the Planck data precision
• Isospin-Violating Dark Matter in the Sun
• Isospin-violating dark matter in the light of recent data
• Directly detecting Isospin-Violating Dark Matter

Cited by in corpus (2)

• XQC and CSR constraints on strongly interacting dark matter with spin and velocity dependent cross sections
• Numerical solution of the exact background collisional Boltzmann equation for dark matter-baryon scattering