Direct detection experiments turn to lose sensitivity of searching for a sub-MeV light dark matter candidate due to the threshold of recoil energy. However, such light dark matter particles can be accelerated by energetic cosmic-rays such that they can be detected with existing detectors. We derive the constraints on the scattering of a boosted light dark matter and electron from the XENON100/1T experiment. We illustrate that the energy dependence of the cross section plays a crucial role in improving both the detection sensitivity and also the complementarity of direct detection and other experiments.
@article{arxiv.2006.12767,
title = {Exploring for sub-MeV Boosted Dark Matter from Xenon Electron Direct Detection},
author = {Qing-Hong Cao and Ran Ding and Qian-Fei Xiang},
journal= {arXiv preprint arXiv:2006.12767},
year = {2021}
}