Atomic Ionization by keV-scale Pseudoscalar Dark Matter Particles

Abstract

Using the relativistic Hartree-Fock approximation, we calculate the rates of atomic ionization by absorption of pseudoscalar particles in the mass range from 10 to $\sim$ 50 keV. We present numerical results for atoms relevant for the direct dark matter searches (e.g. Ar, Ge, I and Xe), as well as the analytical formula which fits numerical calculations with few per cent accuracy and may be used for multi-electron atoms, molecules and condensed matter systems.

4.5 pages, 3 figures

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• Supersymmetric Dark Matter
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• Parity-violating interactions of cosmic fields with atoms, molecules, and nuclei: Concepts and calculations for laboratory searches and extracting limits
• Limiting P-odd interactions of cosmic fields with electrons, protons and neutrons
• Dark matter scattering on electrons: Accurate calculations of atomic excitations and implications for the DAMA signal
• Constraints on dark photons and axion-like particles from SuperCDMS Soudan
• Neutrino Physics with Dark Matter Experiments and the Signature of New Baryonic Neutral Currents
• Dark Matter Absorption via Electronic Excitations
• Millicharged Cosmic Rays and Low Recoil Detectors
• EXCEED-DM: Extended Calculation of Electronic Excitations for Direct Detection of Dark Matter
• New Atomic probes for Dark Matter detection: Axions, Axion-like particles and Topological Defects
• Relativistic spin dynamics conditioned by dark matter axions
• Physical Signatures of Fermion-Coupled Axion Dark Matter
• New generation low-energy probes for ultralight axion and scalar dark matter
• Atomic ionization by scalar dark matter and solar scalars
• Migdal-type effect in the dark matter absorption process
• The Non-Relativistic Effective Field Theory Of Dark Matter-Electron Interactions
• Decoherence in excited atoms by low-energy scattering