Extending Dark Matter Detection to Planck Mass

by Prof. Shengchao Li（李圣超） (Westlake University)

Wednesday 12 Jun 2024, 10:00 → 12:00 Asia/Shanghai

5#/6th-603 - Meeting Room 603 (Science Building)

Abstract：

Multiple theoretical models predict heavy dark matter particles with a mass close to the Planck mass. We conducted a blind search for signals from Multiply-Interacting Massive Particles (MIMPs) in XENON1T, but observed no signal candidate events in the search data with a total exposure of 219.4 days. In this talk, I will present the new constraints on spin-independent and spin-dependent interactions of dark matter particles with masses close to the Planck scale, and an associated new strategy allowing a near-background-free search. If time allows, I will also introduce the concept of using an array of mechanical impulse sensors with a quantum-enhanced readout for ultraheavy dark matter detection.

 

Biography: 

Shengchao Li earned his B.S. and M.Ph. degrees in Physics from University of Hong Kong in 2013 and 2015, respectively. He worked on reactor neutrino experiments (Daya Bay, CHANDLER) for his Ph.D. study at Virginia Tech, and continued as a postdoc at Purdue University working on dark matter experiments (XENON, Windchime). In August 2023, Shengchao started as an assistant professor at Westlake University, continuing his experimental research for dark matter and neutrinos.

Host: Prof. Ning Zhou

Alternative online link: https://meeting.tencent.com/dm/FZLcHkUTz9W5 (id: 222576917passcode: 123456）