https://doi.org/10.1140/epjc/s10052-020-08652-x
Regular Article – Theoretical Physics
Collider constraints on a dark matter interpretation of the XENON1T excess
1
Department of Physics, Center for Theoretical Physics, Parahyangan Catholic University, Jl. Ciumbuleuit 94, Bandung, 40141, Indonesia
2
Indonesian Institute of Sciences (LIPI), Kompleks Puspiptek Serpong, Tangerang, 15314, Indonesia
3
Department of Physics, Srinakharinwirot University, 114 Sukhumvit 23 Rd., Wattana, Bangkok, 10110, Thailand
4
National Astronomical Research Institute of Thailand, Chiang Mai, 50180, Thailand
* e-mail: patipan@g.swu.ac.th
Received:
14
July
2020
Accepted:
7
November
2020
Published online:
23
November
2020
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.
© The Author(s), 2020
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