Collider Constraints on a Dark Matter Interpretation of the XENON1T Excess

Abstract

In light of the excess in the low-energy electron recoil events reported by XENON1T, many new physics scenarios have been proposed as a possible origin of the excess. One possible explanation is that the excess is a result of a fast moving dark matter (DM), with velocity $v\sim 0.05-0.20$ and mass between 1 MeV and 10 GeV, scattering off an electron. Assuming the fast moving DM-electron interaction is mediated by a vector particle, we derive collider constraints on the said DM-electron interaction. The bounds on DM-electron coupling is then used to constrain possible production mechanisms of the fast moving DM. We find that the preferred mass of the vector mediator is relatively light ($\lesssim$ 1 GeV) and the coupling of the vector to the electron is much smaller than the coupling to the fast moving DM.

6 pages, 5 figures, references added, CMB constraints included, low-energy bounds updated, conclusion unchanged

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Cited by in corpus (23)

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• Re-examining the Solar Axion Explanation for the XENON1T Excess
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• XENON1T excess in local $Z_2$ DM models with light dark sector
• One-loop running of dimension-six Higgs-neutrino operators and implications of a large neutrino dipole moment
• Global fits of axion-like particles to XENON1T and astrophysical data
• An Active-to-Sterile Neutrino Transition Dipole Moment and the XENON1T Excess
• Probing the relaxed relaxion and Higgs-portal with S1 & S2
• Solar Neutrino Scattering with Electron into Massive Sterile Neutrino
• Implications of the XENON1T Excess on the Dark Matter Interpretation
• XENON1T solar axion and the Higgs boson emerging from the dark
• Dark Matter, Muon Anomalous Magnetic Moment and the XENON1T Excess
• Impact of loop-induced processes on the boosted dark matter interpretation of the XENON1T excess
• Constraints on electron-scattering interpretation of XENON1T excess
• EFT Approach of Inelastic Dark Matter for Xenon Electron Recoil Detection
• Canonical seesaw implication for two-component dark matter
• XENON1T Excess: Some Possible Backgrounds
• Probing sub-GeV leptophilic dark matter at Belle II and NA64
• Explaining The XENON1T Excess With Light Goldstini Dark Matter
• Dark Fluxes from Accreting Black Holes and Direct Detections
• Dequantization of electric charge: Probing scenarios of cosmological multi-component dark matter
• Lepton Number Violating Electron Recoils in a $U(1{)}_{B-L}$ Model with Non-Standard Interactions