We measured two-neutrino double beta decay of Te130 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: T1/22ν=7.71-0.06+0.08(stat)-0.15+0.12(syst)×1020 yr. This measurement is the most precise determination of the Te130 2νββ decay half-life to date.
Adams D.Q., Alduino C., Alfonso K., Avignone F.T., Azzolini O., Bari G., et al. (2021). Measurement of the 2νββ Decay Half-Life of Te 130 with CUORE. PHYSICAL REVIEW LETTERS, 126(17), 1-6 [10.1103/PhysRevLett.126.171801].
Measurement of the 2νββ Decay Half-Life of Te 130 with CUORE
Moggi N.;Zucchelli S.
2021
Abstract
We measured two-neutrino double beta decay of Te130 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: T1/22ν=7.71-0.06+0.08(stat)-0.15+0.12(syst)×1020 yr. This measurement is the most precise determination of the Te130 2νββ decay half-life to date.File | Dimensione | Formato | |
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PhysRevLett.126.171801.pdf
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Descrizione: Articolo pubblicato su rivista internazionale con referees. Ricerca del decadimento doppio beta privo di neutrini nel Tellurio 130
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