Measurement of the 2νßß Decay Half-Life of
Phys Rev Lett
; 126(17): 171801, 2021 Apr 30.
Article
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| MEDLINE
| ID: mdl-33988435
We measured two-neutrino double beta decay of ^{130}Te using an exposure of 300.7 kg yr accumulated with the CUORE detector. Using a Bayesian analysis to fit simulated spectra to experimental data, it was possible to disentangle all the major background sources and precisely measure the two-neutrino contribution. The half-life is in agreement with past measurements with a strongly reduced uncertainty: T_{1/2}^{2ν}=7.71_{-0.06}^{+0.08}(stat)_{-0.15}^{+0.12}(syst)×10^{20} yr. This measurement is the most precise determination of the ^{130}Te 2νßß decay half-life to date.
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01-internacional
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MEDLINE
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En
Revista:
Phys Rev Lett
Año:
2021
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Article
País de afiliación:
Estados Unidos