Collider Constraints on a Dark Matter Interpretation of the XENON1T Excess
| Autor: | Patipan Uttayarat, J. Julio, Reinard Primulando |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Physics
Particle physics Cosmology and Nongalactic Astrophysics (astro-ph.CO) Physics and Astronomy (miscellaneous) 010308 nuclear & particles physics Scattering Physics beyond the Standard Model Dark matter FOS: Physical sciences Electron Coupling (probability) 01 natural sciences law.invention High Energy Physics - Phenomenology Recoil High Energy Physics - Phenomenology (hep-ph) law 0103 physical sciences Particle 010306 general physics Collider Engineering (miscellaneous) Astrophysics - Cosmology and Nongalactic Astrophysics |
| Zdroj: | European Physical Journal |
| Popis: | 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. 6 pages, 5 figures, references added, CMB constraints included, low-energy bounds updated, conclusion unchanged |
| Databáze: | OpenAIRE |
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