Characterization of a ${}^{220}$Rn source for low-energy electronic recoil calibration of the XENONnT detector

Florian Jörg, Shengchao Li, Jochen Schreiner +2

Low-background liquid xenon detectors are utilized in the investigation of rare events, including dark matter and neutrinoless double beta decay. For their calibration, gaseous $^{…