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Title:
Recent Results and Status of the XENON Dark Matter Project
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Abstract:
The XENON Dark Matter Project aims at the direct detection of Dark Matter WIMPs as they scatter off a liquid xenon target in a two-phase time projection chamber (TPC). With steadily increased target mass and lower background, the XENON experiments have set world-leading limits on WIMP-nucleon interactions over a broad mass range – most recently with XENON1T, the first to use a XeTPC at the tonne scale. Its unprecedented low background coupled with the tonne-year exposure also enabled searches for rare nuclear processes, the coherent elastic scattering of solar neutrinos and alternative Dark Matter candidates. Notably, an excess of low-energy electronic recoil events was observed whose origin could not be determined. This will be one of the science goals of the data being taken with the upgraded experiment, called XENONnT. With 8.6 t of LXe of which 5.9 t active, XENONnT will also have a WIMP sensitivity by more than an order of magnitude beyond current limits. In this seminar I will highlight the recent XENON1T results and give an overview of XENONnT’s innovative systems, status and physics reach.
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