Status of the XENON Dark Matter Search Experiment

The XENONnT experiment is the follow-up to XENON1T within the XENON program aimed at the direct detection of dark matter with liquid xenon time projection chambers (LXeTPCs)  of increased target mass and decreased background. The experiment,  operated at the Laboratori Nazionali del Gran Sasso in Italy, uses a new TPC with 8.5 tonnes of liquid xenon of which ~6 tonnes are active.

The main goal of XENONnT is the direct detection of weakly interacting massive particles (WIMPs), with one order of magnitude more sensitivity than XENON1T.

This talk will present the current status of the XENONnT experiment and results from the commissioning of the detector and its new subsystems which include a neutron veto, a novel purification in liquid phase and a novel radon distillation column, as well as calibration results and projected WIMP sensitivity for the first science run.