Speaker
Difan Yi
(University of Chinese Academic of Sciences)
Description
The Migdal effect has attracted considerable attention in recent years due to its significant contribution to the sensitivity of sub-GeV dark matter detectors in theoretical calculations. This report will present our experiment that directly observes the Migdal effect using the gas micropixel detector designed by MARVEL group at a D-D neutron source. We will introduce the detector structure and performance test results, the details of the D-D beam experiment, as well as the data analysis and relevant outcomes. Finally, we will talk about the detector upgrade progress and the subsequent data acquisition plan.