Low-mass inelastic dark matter direct detection via the Migdal effect

Abstract

We consider searches for the inelastic scattering of low-mass dark matter at direct detection experiments, using the Migdal effect. We find that there are degeneracies between the dark matter mass and the mass splitting that are difficult to break. Using XENON1T data we set bounds on a previously unexplored region of the inelastic dark matter parameter space. For the case of exothermic scattering, we find that the Migdal effect allows xenon-based detectors to have sensitivity to dark matter with $\mathcal{O}(\mathrm{MeV})$ mass, far beyond what can be obtained with nuclear recoils alone.

arXiv comment6 pages, 4 figures (v2: 1 figure and additional discussion added)

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Cited by in corpus (26)

• Accelerating Composite Dark Matter Discovery with Nuclear Recoils and the Migdal Effect
• Precise predictions and new insights for atomic ionisation from the Migdal effect
• Cosmic-ray dark matter confronted by constraints on new light mediators
• Direct Detection of Spin-Dependent Sub-GeV Dark Matter via Migdal Effect
• The Migdal Effect in Semiconductors for Dark Matter with Masses below $\sim$100 MeV
• Revisiting the Fermionic Dark Matter Absorption on Electron Target
• Measuring the Migdal effect in semiconductors for dark matter detection
• Spin-dependent sub-GeV Inelastic Dark Matter-electron scattering and Migdal effect: (I). Velocity Independent Operator
• Detection of Inelastic Dark Matter via Electron Recoils in SENSEI
• On the impact of the Migdal effect in reactor CE$\nu$NS experiments
• GeV Scale Inelastic Dark Matter with Dark Photon Mediator via Direct Detection and Cosmological/Laboratory Constraints
• Low-mass extension of direct detection bounds on WIMP-quark and WIMP-gluon effective interactions using the Migdal effect
• Exploring light dark matter with the Migdal effect in hydrogen-doped liquid xenon
• Explorations of pseudo-Dirac dark matter having keV splittings and interacting via transition electric and magnetic dipole moments
• Probing Dark Matter Electromagnetic Properties in Direct Detection Experiments
• Low-mass constraints on WIMP effective models of inelastic scattering using the Migdal effect
• Probing Light Inelastic Dark Matter from Direct Detection
• Can sub-GeV dark matter coherently scatter on the electrons in the Atom?
• Detecting Boosted Dark Photons with Gaseous Detectors
• Probing levitodynamics with multi-stochastic forces and the simple applications on the dark matter detection in optical levitation experiment
• Nuclear and electron scattering by neutrinos and dark matter in condensed systems
• The Migdal effect in solid crystals and the role of non-adiabaticity
• The Forward Physics Facility at the High-Luminosity LHC
• Earth-Catalyzed Detection of Magnetic Inelastic Dark Matter with Photons in Large Underground Detectors
• Comparison of the Migdal transition probabilities in electron-atom inelastic cross sections
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