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. 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
(Perimeter Institute)
Mukul Sholapurkar
(Stony Brook University)
Peizhi Du
(Stony Brook University)
Rouven Essig
(Stony Brook University)
