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- Title
Recent Results from the M ajorana D emonstrator.
- Authors
Gilliss, T; Alvis, S I; Arnquist, I J; Avignone, F T; Barabash, A S; Barton, C J; Bertrand, F E; Bode, T; Brudanin, V; Busch, M; Buuck, M; Caldwell, T S; Chan, Y-D; Christofferson, C D; Chu, P -H; Cuesta, C; Detwiler, J A; Dunagan, C; Efremenko, Yu; Ejiri, H
- Abstract
The MAJORANA Collaboration has completed construction and is now operating an array of high purity Ge detectors searching for neutrinoless double-beta decay () in Ge. The array, known as the MAJORANA DEMONSTRATOR, is comprised of 44 kg of Ge detectors (30 kg enriched to 88% in Ge) installed in an ultra-low background compact shield at the Sanford Underground Research Facility in Lead, South Dakota. The primary goal of the DEMONSTRATOR is to establish a low-background design that can be scaled to a next-generation tonne-scale experiment. This work reports initial background levels in the region of interest. Also presented are recent physics results leveraging P-type point-contact detectors with sub-keV energy thresholds to search for physics beyond the Standard Model; first results from searches for bosonic dark matter, solar axions, Pauli exclusion principle violation, and electron decay have been published. Finally, this work discusses the proposed tonne-scale Ge LEGEND experiment.
- Publication
International Journal of Modern Physics: Conference Series, 2018, Vol 46, p-1
- ISSN
2010-1945
- Publication type
Article
- DOI
10.1142/S2010194518600492