collaboration, GERDA;
Agostini, M;
Alexander, A;
Araujo, GR;
Bakalyarov, AM;
Balata, M;
Barabanov, I;
... Zuzel, G; + view all
(2023)
Final Results of GERDA on the Two-Neutrino Double-β Decay Half-Life of 76Ge.
Physical Review Letters
, 131
, Article 142501. 10.1103/PhysRevLett.131.142501.
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Abstract
We present the measurement of the two-neutrino double- β decay rate of 76 Ge performed with the GERDA Phase II experiment. With a subset of the entire GERDA exposure, 11.8 kg yr, the half-life of the process has been determined: T 2 ν 1 / 2 = ( 2.022 ± 0.01 8 stat ± 0.03 8 syst ) × 10 21 yr . This is the most precise determination of the 76 Ge two-neutrino double- β decay half-life and one of the most precise measurements of a double- β decay process. The relevant nuclear matrix element can be extracted: M 2 ν eff = ( 0.101 ± 0.001 ) .
| Type: | Article |
|---|---|
| Title: | Final Results of GERDA on the Two-Neutrino Double-β Decay Half-Life of 76Ge |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.131.142501 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.131.142501 |
| Language: | English |
| Additional information: | Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Open access publication funded by the Max Planck Society. |
| 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.ucl.ac.uk/id/eprint/10186320 |
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