Speaker
Peizhi Du
(Stony Brook University)
Description
We point out several unexplored low-energy backgrounds to sub-GeV dark matter searches, which arise from high-energy particles of cosmic or radioactive origin that interact with detector materials. In this talk, I will focus on Cherenkov radiation and luminescence from electron-hole pair recombination. I will show that these processes provide plausible explanations of the observed events at SENSEI and SuperCDMS HVeV. A detailed simulation of these events at SENSEI will be presented in the companion talk. We also propose several important design strategies to mitigate such backgrounds, which could have a significant impact on the design of future dark matter experiments.
Authors
Daniel Egana-Ugrinovic
(CN Yang Institute, Stony Brook University)
Mukul Sholapurkar
(Stony Brook University)
Peizhi Du
(Stony Brook University)
Rouven Essig
(Stony Brook University)
