Title: New Semiconductor Devices for Dark Matter Detection

Speaker: Peizhi Du (Rutgers University)

Time: 2:00 pm, Aug 18 (Friday) 2023

Location: 理科楼C109

Abstract: Dark matter remains a fundamental mystery in particle physics, and extensive efforts have been made to detect it in labs. In this talk, I will summarize the recent progress in sub-GeV dark matter detection with semiconductors and introduce our new idea to probe sub-MeV dark matter with doped semiconductors. I will also discuss the origin of the unexplored backgrounds in current detectors and demonstrate our dual-sided CCD design can significantly reduce some those backgrounds.

Bio: Peizhi Du is currently a postdoc at Rutgers University since 2022. He received his PhD from University of Maryland in 2019 and then moved to Stony Brook University for his first postdoc position (2019-2022). His research focuses on theoretical particle physics and cosmology, including dark matter direct detection, constraining new physics in astrophysics and cosmology, and cosmological phase transitions.