13.10.2022Search for New Physics in Electronic Recoil Data from XENONnT

The experiment is honing in on electronic recoil events in hopes of clarifying an intriguing excess that appeared two years ago in the predecessor experiment, XENON1T. A stunningly low background was achieved (see figure, right), with the first science run having an exposure of ~1 tonne-year. Although hopes for new physics disappeared with the absence of an excess this time around, the XENONnT background spectrum is prominently adorned by none other than second-order weak processes. New, world-leading limits were set for solar axions, an enhancement in the neutrino magnetic moment, and bosonic dark matter. The search for WIMP dark matter is well underway, with new results coming soon.