Aguerre, X;
Arnold, R;
Augier, C;
Barabash, AS;
Basharina-Freshville, A;
Blondel, S;
Blot, S;
... Xie, F; + view all
(2023)
Measurement of the double- β decay of <sup>150</sup> Nd to the 0 1+ excited state of <sup>150</sup> Sm in NEMO-3.
European Physical Journal C
, 83
(12)
, Article 1117. 10.1140/epjc/s10052-023-12227-x.
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Abstract
The NEMO-3 results for the double- β decay of 150 Nd to the 0 1+ and 2 1+ excited states of 150 Sm are reported. The data recorded during 5.25 year with 36.6 g of the isotope 150 Nd are used in the analysis. The signal of the 2 νββ transition to the 0 1+ excited state is detected with a statistical significance exceeding 5 σ . The half-life is measured to be T1/22νββ(01+)=[1.11-0.14+0.19(stat)-0.15+0.17(syst)]×1020 year, which is the most precise value that has been measured to date. 90% confidence-level limits are set for the other decay modes. For the 2 νββ decay to the 2 1+ level the limit is T1/22νββ(21+)>2.42×1020year . The limits on the 0 νββ decay to the 0 1+ and 2 1+ levels of 150 Sm are significantly improved to T1/20νββ(01+)>1.36×1022year and T1/20νββ(21+)>1.26×1022year .
| Type: | Article |
|---|---|
| Title: | Measurement of the double- β decay of <sup>150</sup> Nd to the 0 1+ excited state of <sup>150</sup> Sm in NEMO-3 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1140/epjc/s10052-023-12227-x |
| Publisher version: | http://dx.doi.org/10.1140/epjc/s10052-023-12227-x |
| Language: | English |
| Additional information: | This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://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.ucl.ac.uk/id/eprint/10184234 |
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