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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2401.04782 |
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| _version_ | 1866929205923545088 |
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| author | Tedeschi, David J. |
| author_facet | Tedeschi, David J. |
| contents | The MAJORANA DEMONSTRATOR recently concluded its search for neutrinoless double-beta decay. The experiment operated an array of up to 40.4 kg of germanium detectors, 27 kg of which were isotopically enriched in 76Ge and housed inside a compact shield consisting of lead and copper at the Sanford Underground Research Facility (SURF) in Lead, SD. The experiment achieved a world leading energy resolution of 0.12% FWHM at 2039 keV, one of the lowest background rates in the region of the 0vBB Q-value, 15.7 +1.4 -1.3 cnts/(FWHM t y), and set a 0vBB half-life limit of T_1/2 > 8.3x10^25 yrs based on its full active exposure of 65 kg yr, resulting in limits on the effective neutrino mass of mBB < 113-269 meV. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_04782 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Results of the MAJORANA DEMONSTRATOR's Search for Neutrinoless Double Beta Decay Tedeschi, David J. Nuclear Experiment The MAJORANA DEMONSTRATOR recently concluded its search for neutrinoless double-beta decay. The experiment operated an array of up to 40.4 kg of germanium detectors, 27 kg of which were isotopically enriched in 76Ge and housed inside a compact shield consisting of lead and copper at the Sanford Underground Research Facility (SURF) in Lead, SD. The experiment achieved a world leading energy resolution of 0.12% FWHM at 2039 keV, one of the lowest background rates in the region of the 0vBB Q-value, 15.7 +1.4 -1.3 cnts/(FWHM t y), and set a 0vBB half-life limit of T_1/2 > 8.3x10^25 yrs based on its full active exposure of 65 kg yr, resulting in limits on the effective neutrino mass of mBB < 113-269 meV. |
| title | Results of the MAJORANA DEMONSTRATOR's Search for Neutrinoless Double Beta Decay |
| topic | Nuclear Experiment |
| url | https://arxiv.org/abs/2401.04782 |