Jul 24 – 28, 2017
Other Institutes
Canada/Eastern timezone

Initial Results from the MAJORANA DEMONSTRATOR

Jul 24, 2017, 4:00 PM
15m
UPPER FRASER L FA056

UPPER FRASER L FA056

Contributed talk Neutrinos Neutrino Parallel

Speaker

Thomas Caldwell (University of North Carolina)

Description

The MAJORANA Collaboration has assembled an array of high purity Ge detectors to search for neutrinoless double-beta decay in $^{76}$Ge with the goal of establishing the required background and scalability of a Ge-based next-generation tonne-scale experiment. The MAJORANA DEMONSTRATOR consists of 44 kg of high-purity Ge (HPGe) detectors (30 kg enriched in $^{76}$Ge) with a low-noise p-type point contact (PPC) geometry. The detectors are split between two modules which are contained in a single lead and high-purity copper shield at the Sanford Underground Research Facility in Lead, South Dakota. Following a commissioning run that started in June 2015, the full detector array has been acquiring data since August 2016. We will discuss the status of the MAJORANA DEMONSTRATOR and initial results from the first physics run; including current background estimates, exotic low-energy physics searches, projections on the physics reach of the DEMONSTRATOR, and implications for a tonne-scale Ge based neutrinoless double-beta decay search.

Primary author

Thomas Caldwell (University of North Carolina)

Presentation materials