Final Results of GERDA on the Two-Neutrino Double-β Decay Half-Life of ^{76}Ge.
Journal
Physical review letters
ISSN: 1079-7114
Titre abrégé: Phys Rev Lett
Pays: United States
ID NLM: 0401141
Informations de publication
Date de publication:
06 Oct 2023
06 Oct 2023
Historique:
received:
13
05
2023
accepted:
15
08
2023
medline:
20
10
2023
pubmed:
20
10
2023
entrez:
20
10
2023
Statut:
ppublish
Résumé
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_{1/2}^{2ν}=(2.022±0.018_{stat}±0.038_{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_{eff}^{2ν}=(0.101±0.001).
Identifiants
pubmed: 37862664
doi: 10.1103/PhysRevLett.131.142501
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM