High Energy Physics Seminar
This seminar is joint with Nuclear Physics.
Speaker: Jordan Myslik, LBNL
Title: Recent results from the MAJORANA DEMONSTRATOR
Refreshments available at 1:30 pm.
Date: Tue, 27 Feb 2018, 1:45 pm – 2:45 pm
Location: 1400 BPS Bldg.
The lepton number violating process of neutrinoless double-beta decay could result from the physics beyond the Standard Model needed to generate the neutrino masses. The MAJORANA DEMONSTRATOR is an experiment constructed to search for neutrinoless double-beta decays in germanium-76 and to demonstrate the feasibility to deploy a large-scale experiment in a phased and modular fashion. It consists of two modular arrays of natural and 76Ge-enriched germanium detectors totaling 44.1 kg, located at the 4850′ level of the Sanford Underground Research Facility in Lead, South Dakota, USA. The achieved ultra-low backgrounds and excellent energy resolution make a strong case for a tonne-scale 76Ge experiment. I will discuss the physics and design elements of the MAJORANA DEMONSTRATOR, recent results from its search for neutrinoless double-beta decay, and the plan for a future tonne-scale 76Ge experiment LEGEND.