Agostini, M;
Araujo, GR;
Bakalyarov, AM;
Balata, M;
Barabanov, I;
Baudis, L;
Bauer, C;
... GERDA Collaboration, .; + view all
(2020)
Final Results of GERDA on the Search for Neutrinoless Double-β Decay.
Physical Review Letters
, 125
(25)
, Article 252502. 10.1103/PhysRevLett.125.252502.
Preview |
Text
PhysRevLett.125.252502.pdf - Published Version Download (345kB) | Preview |
Abstract
The GERmanium Detector Array (GERDA) experiment searched for the lepton-number-violating neutrinoless double-β (0νββ) decay of ^{76}Ge, whose discovery would have far-reaching implications in cosmology and particle physics. By operating bare germanium diodes, enriched in ^{76}Ge, in an active liquid argon shield, GERDA achieved an unprecedently low background index of 5.2×10^{-4} counts/(keV kg yr) in the signal region and met the design goal to collect an exposure of 100 kg yr in a background-free regime. When combined with the result of Phase I, no signal is observed after 127.2 kg yr of total exposure. A limit on the half-life of 0νββ decay in ^{76}Ge is set at T_{1/2}>1.8×10^{26} yr at 90% C.L., which coincides with the sensitivity assuming no signal.
| Type: | Article |
|---|---|
| Title: | Final Results of GERDA on the Search for Neutrinoless Double-β Decay |
| Location: | United States |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.125.252502 |
| Publisher version: | https://doi.org/10.1103/PhysRevLett.125.252502 |
| Language: | English |
| Additional information: | © 2021 American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license (https://creativecommons.org/licenses/by/4.0/). |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10117885 |
Archive Staff Only
 |
View Item |
