Speaker
Description
The MAJORANA DEMONSTRATOR experiment is an array of high-purity germanium detectors searching for neutrinoless double-beta decay in $^{76}$Ge. The combined strengths of the MAJORANA experiment and the complementary approach taken by the GERDA experiment have successfully demonstrated the feasibility of the next-generation $^{76}$Ge experiment called LEGEND. The LEGEND program has adopted a new Inverted-Coaxial Point Contact (ICPC) detector design with a typical mass in the 2 - 3 kg range that is larger than point-contact detectors used by MAJORANA and GERDA previously. One of the studies to validate the use of this new detector design was the installation 4 ICPC detectors into the final operational period of the MAJORANA DEMONSTRATOR. With a mass three times larger than the primary detectors used by MAJORANA, their use required some modifications to the analysis algorithms to correct for the charge trapping along the longer drift lengths. We present the analysis and results from the data taken with the ICPC detectors in the DEMONSTRATOR to show their performance, excellent energy resolution, and potential for use in next-generation
experiments.
This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics, the Particle Astrophysics and Nuclear Physics Programs of the National Science Foundation, and the Sanford Underground Research Facility.
| Collaboration | MAJORANA |
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