Status and prospects of the electron recoil channel in XENONnT

ORAL

Abstract

XENONnT recently published the first search results with low-energy electron-recoil data. Compared with XENON1T, the liquid xenon target is increased by ~4 and the background rate in the region of interest is reduced by a factor of 5. With an exposure of 1.16 tonne-years, we observe no excess above background and set stringent new limits on solar axions, an enhanced neutrino magnetic moment, and bosonic dark matter. The ultra-low O(10keV) electron recoil background also demonstrates the possibility for XENONnT to contribute to other topics like solar neutrino measurement in the near future.

*We gratefully acknowledge support from the National Science Foundation, Swiss National Science Foundation, German Ministry for Education and Research, Max Planck Gesellschaft, Deutsche Forschungsgemeinschaft, Helmholtz Association, Dutch Research Council (NWO), Weizmann Institute of Science, Israeli Science Foundation, Binational Science Foundation, Funda¸c˜ao para a Ciˆencia e a Tecnologia, R´egion des Pays de la Loire, Knut and Alice Wallenberg Foundation, Kavli Foundation, JSPS Kakenhi and JST FOREST Program in Japan, Tsinghua University Initiative Scientific Research Program and Istituto Nazionale di Fisica Nucleare. This project has received funding/support from the European Union's Horizon 2020 research and innovation programme under the Marie Sk lodowska-Curie grant agreement No 860881-HIDDeN. Data processing is performed using infrastructures from the Open Science Grid, the European Grid Initiative and the Dutch national einfrastructure with the support of SURF Cooperative. We

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Publication: Search for New Physics in Electronic Recoil Data from XENONnT
E. Aprile et al. (XENON Collaboration)
Phys. Rev. Lett. 129, 161805

Presenters

  • Yue Ma

    • University of California, San Diego

Authors

  • Yue Ma

    • University of California, San Diego