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arXiv · 2006.13161

Collider Constraints on a Dark Matter Interpretation of the XENON1T Excess

R. Primulando·J. Julio·P. Uttayarat
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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 $v\sim0.05-0.20$ 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.

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R. Primulando, J. Julio, P. Uttayarat. 2020-06-23. Collider Constraints on a Dark Matter Interpretation of the XENON1T Excess. https://doi.org/10.1140/epjc/s10052-020-08652-x

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