A Low Energy Rare Event Search with the Majorana Demonstrator

ORAL

Abstract

The \textsc{Majorana Demonstrator} is an array of ultra-low background, P-type point contact (PPC) high-purity germanium (HPGe) detectors, with excellent energy resolution, keV-scale thresholds, and low cosmogenic activation. In addition to the primary search for neutrinoless double beta decay, we are searching for new physics beyond the Standard Model in the low-energy region under 100 keV, including bosonic dark matter and solar axions. Significant progress has been made in developing new data filters to automatically extract physics events at low energy, across the multi-year operational period of the \textsc{Demonstrator}. In this talk, we present a review of our rare event searches, and an update on new results.

*This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics, the Particle Astrophysics and Nuclear Physics Programs of the National Science Foundation, and the Sanford Underground Research Facility.

Authors

  • Clint Wiseman

    • University of Washington
  • In Wook Kim

    • Los Alamos National Laboratory
  • José Mariano López-Castaño

    • University of South Dakota