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Physics and Astronomy Thesis Proposal Presentation – Brady Bos

June 25, 2021 @ 9:00 am - 11:00 am

UNC-CH Physics and Astronomy Thesis Proposal Presentation

Brady Bos

“Enhanced Detector Geometries for a Next Generation Tonne-scale Ge-76 Based 0vbb Experiment”

The Large Enriched Germanium Experiment for Neutrinoless double-beta Decay (LEGEND) is a next-generation experiment searching for neutrinoless double-beta decay in Ge-76. LEGEND is taking a staged approach with the first phase, LEGEND-200, currently being built in the existing GERDA cryostat at Laboratori Nazionali del Gran Sasso (LNGS) in Italy. It will deploy enriched Ge-76 p-type point contact detectors in an active liquid argon (LAr) shield and will take its first commissioning data in 2021. In a similar fashion the second phase, LEGEND-1000, will deploy 1000 kg of Ge-76 with hopes to achieve a half-life sensitivity to 0nbb of >10^28 years. To achieve this, LEGEND requires extremely low backgrounds and relies on technologies developed by the GERDA experiment and the MAJORANA DEMONSTRATOR. Reducing backgrounds by decreasing the number of near detector components can be achieved by using larger detectors. Due to physics limiting the masses of our largest detectors, an alternative detector geometry has been proposed. My thesis research will focus on the development of the new ring contact detector for LEGEND-1000. Developing a detector mount, characterization of the detector and testing its feasibility to operate in LAr is critical for its potential use in LEGEND-1000. I will also contribute to the installation of LEGEND-200 detectors and the analysis of the first physics results.

The defense will take place remotely via Zoom: https://us02web.zoom.us/j/86117993727?pwd=c2wrUSt1QkMvVG1VeWdVVGlVWEJBUT09

Details

Date:
June 25, 2021
Time:
9:00 am - 11:00 am