Latest Results from the Majorana Demonstrator
ORAL
Abstract
The MAJORANA DEMONSTRATOR is a Ge-based neutrinoless double-beta decay ($0\nu\beta\beta$) experiment currently operating at the 4850' level of the Sanford Underground Research Facility. The DEMONSTRATOR contains 44 kg of p-type point contact Ge detectors (30 kg enriched in Ge-76) in two modules that are surrounded by a low background passive shield. The experiment has a leading energy resolution of 2.5 keV FWHM as well as one of the lowest backgrounds in the region of interest surrounding the double-beta decay Q-value. The DEMONSTRATOR's high-resolution electronics and use of ultrapure materials to control backgrounds will form one component of LEGEND-200's approach to increasing sensitivity to $0\nu\beta\beta$. In this talk, I will review the MAJORANA DEMONSTRATOR's latest results after analysis improvements and discuss the recent performance of the array following a hardware upgrade.
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Authors
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Anna Reine
University of North Carolina at Chapel Hill