Speaker
Description
Liquid xenon experiments have advanced dark matter direct detection. While traditionally focused on keV-scale signals, the MeV region also offers rich information for studying neutrinos and dark matter. The PandaX-4T experiment at the China Jinping Underground laboratory uses 3.7 tons of natural xenon. We have developed a dedicated data analysis framework extending its energy range to the MeV scale, systematically characterized the detector response and background model, and searched for neutrinoless double beta decay, axion-like particles/dark photons, and more. This talk will highlight these achievements.