DarkELF: A python package for dark matter scattering in dielectric targets

Abstract

We present a python package to calculate interaction rates of light dark matter in dielectric materials, including screening effects. The full response of the material is parametrized in the terms of the energy loss function (ELF) of material, which darkELF converts into differential scattering rates for both direct dark matter electron scattering and through the Migdal effect. In addition, darkELF can calculate the rate to produce phonons from sub-MeV dark matter scattering via the dark photon mediator, as well as the absorption rate for dark matter comprised of dark photons. The package includes precomputed ELFs for Al, ${\mathrm{Al}}_2{\mathrm{O}}_3$, GaAs, GaN, Ge, Si, ${\mathrm{SiO}}_2$, and ZnS, and allows the user to easily add their own ELF extractions for arbitrary materials.

21 pages, 11 figures, code available at https://github.com/tongylin/DarkELF

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• Searches for light dark matter using condensed matter systems
• Constraints on Sub-GeV Dark Matter--Electron Scattering from the CDEX-10 Experiment
• Precise predictions and new insights for atomic ionisation from the Migdal effect
• EXCEED-DM: Extended Calculation of Electronic Excitations for Direct Detection of Dark Matter
• Dark matter direct detection from the single phonon to the nuclear recoil regime
• The Migdal Effect in Semiconductors for Dark Matter with Masses below $\sim$100 MeV
• Probing Benchmark Models of Hidden-Sector Dark Matter with DAMIC-M
• Dark Matter Candidates of a Very Low Mass
• Dark Matter Induced Power in Quantum Devices
• Dark Matter Direct Detection in Materials with Spin-Orbit Coupling
• Constraints on Dark Matter-Electron Scattering from Molecular Cloud Ionization
• Search for Daily Modulation of MeV Dark Matter Signals with DAMIC-M
• Measuring the Migdal effect in semiconductors for dark matter detection
• Phonon-mediated Migdal effect in semiconductor detectors
• Effective Field Theory for Dark Matter Absorption on Single Phonons
• Enhanced prospects for direct detection of inelastic dark matter from a non-galactic diffuse component
• Dark Matter Direct Detection with Quantum Dots
• Absorption of Axion Dark Matter in a Magnetized Medium
• Physical Signatures of Fermion-Coupled Axion Dark Matter
• The Phonon Background from Gamma Rays in Sub-GeV Dark Matter Detectors
• DM-electron scattering in materials: sum rules and heterostructures
• Dark matter detection using nuclear magnetization in magnet with hyperfine interaction
• On the impact of the Migdal effect in reactor CE$\nu$NS experiments
• Linear response theory for light dark matter-electron scattering in materials
• Freeze-in, glaciation, and UV sensitivity from light mediators
• Halo-Independent Dark Matter Electron Scattering Analysis with In-Medium Effects
• Collective excitations and low-energy ionization signatures of relativistic particles in silicon detectors
• Spin-dependent dark matter-electron interactions
• Plasmon-enhanced Direct Detection Method for Boosted sub-MeV Dark Matter
• Sub-MeV Dark Sink Dark Matter
• Exploring light dark matter with the Migdal effect in hydrogen-doped liquid xenon
• Photon self-energy at all temperatures and densities in all of phase space
• The Revival of $U(1{)}_{L_e-L_{\mu }}$: A Natural Solution for $(g-2{)}_{\mu }$ with a Sub-GeV Dark Matter
• Wavelet-Harmonic Integration Methods
• Partial Rate Matrix for Dark Matter Scattering
• Dark Matter-Electron Scattering Search Using Cryogenic Light Detectors
• First measurement of Gallium Arsenide as a low-temperature calorimeter
• Complementarity of direct detection experiments in search of light Dark Matter
• The linear response theory approach to the sub-GeV dark matter in the Sun
• Nuclear and electron scattering by neutrinos and dark matter in condensed systems
• A general upper bound on the light dark matter scattering rate in materials
• Extracting Halo Independent Information from Dark Matter Electron Scattering Data
• Earth-Scattering Induced Modulation in Low-Threshold Dark Matter Experiments
• Axion detection with phonon-polaritons revisited
• Cutting rules for non-relativistic dark matter in solids based on Kohn-Sham orbitals
• Comparison of the Migdal transition probabilities in electron-atom inelastic cross sections
• On the dark matter origin of an LDMX signal
• Direct Dark Matter searches with Metal Halide Perovskites