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arXiv · 2007.01663

Constraints on electron-scattering interpretation of XENON1T excess

So Chigusa·Motoi Endo·Kazunori Kohri
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Abstract

Recently, the XENON1T experiment has observed an excess in the electronic recoil data in the recoil energy range of $1$-$7$ keV. One of the most favored new physics interpretations is electron scattering with a boosted particle with a velocity of $\sim 0.1$ and a mass of $\gtrsim 0.1\,\mathrm{MeV}$. If such a particle has a strong interaction with electrons, it may affect the standard scenario of cosmology or be observed at low-threshold direct detection experiments. We study various constraints, mainly focusing on those from the big-bang nucleosynthesis, supernova cooling, and direct detection experiments. We discuss the implication of these constraints on electron-scattering interpretation of the XENON1T excess.

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So Chigusa, Motoi Endo, Kazunori Kohri. 2020-07-03. Constraints on electron-scattering interpretation of XENON1T excess. https://doi.org/10.1088/1475-7516/2020/10/035

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