The XENONnT experiment, located in Laboratori Nazionali del Gran Sasso, is a direct detection experiment designed to search for Weakly Interacting Massive Particle (WIMP) dark matter using a dual-phase time projection chamber with 8.5 tonnes of xenon. The experiment began collecting science data in 2021 and is currently in operation. In its first science run (SR0), the experiment achieved an electronic recoil background of 15.8 events/(tonne-year-keV) below 30 keVee, which is the lowest background ever achieved in a dark matter detector. This achievement was made possible by reducing the amounts of radioactive Kr-85 and Rn-222 to an unprecedented low level. The SR0 data has excluded new physics interpretations of the XENON1T excess thanks to the ultra-low background level and large target mass in XENONnT. Moreover, XENONnT recently announced the first WIMP search results using the same data. In this talk, I will give an overview of the XENONnT experiment and present its road to the first two science results.
The Recent Results from the XENONnT Experiment
Host: Ariel Zuñiga Reyes