The Cryogenic Underground Observatory for Rare Events (CUORE) at Laboratori Nazionali del Gran Sasso of INFN in Italy is an experiment searching for neutrinoless double beta (0?) decay. Its main goal is to investigate this decay in Te130, but its ton-scale mass and low background make CUORE sensitive to other rare processes as well. In this Letter, we present our first results on the search for 0? decay of Te128, the Te isotope with the second highest natural isotopic abundance. We find no evidence for this decay, and using a Bayesian analysis we set a lower limit on the Te128 0? decay half-life of T1/2>3.6×1024 yr (90% CI). This represents the most stringent limit on the half-life of this isotope, improving by over a factor of 30 the previous direct search results, and exceeding those from geochemical experiments for the first time.

Adams, D., Alduino, C., Alfonso, K., Avignone, F., Azzolini, O., Bari, G., et al. (2022). New Direct Limit on Neutrinoless Double Beta Decay Half-Life of Te 128 with CUORE. PHYSICAL REVIEW LETTERS, 129(22), 1-9 [10.1103/PhysRevLett.129.222501].

New Direct Limit on Neutrinoless Double Beta Decay Half-Life of Te 128 with CUORE

Beretta M.;Biassoni M.;Branca A.;Brofferio C.;Canonica L.;Capelli S.;Carniti P.;Chiesa D.;Clemenza M.;Cremonesi O.;Dell'oro S.;Faverzani M.;Ferri E.;Fiorini E.;Giachero A.;Gianvecchio A.;Gironi L.;Gotti C.;Nastasi M.;Nucciotti A.;Nutini I.;Pattavina L.;Pavan M.;Pessina G.;Pozzi S.;Previtali E.;Puiu A.;Sisti M.;Terranova F.;
2022

Abstract

The Cryogenic Underground Observatory for Rare Events (CUORE) at Laboratori Nazionali del Gran Sasso of INFN in Italy is an experiment searching for neutrinoless double beta (0?) decay. Its main goal is to investigate this decay in Te130, but its ton-scale mass and low background make CUORE sensitive to other rare processes as well. In this Letter, we present our first results on the search for 0? decay of Te128, the Te isotope with the second highest natural isotopic abundance. We find no evidence for this decay, and using a Bayesian analysis we set a lower limit on the Te128 0? decay half-life of T1/2>3.6×1024 yr (90% CI). This represents the most stringent limit on the half-life of this isotope, improving by over a factor of 30 the previous direct search results, and exceeding those from geochemical experiments for the first time.
Articolo in rivista - Articolo scientifico
CUORE; Neutrinoless double beta decay
English
23-nov-2022
2022
129
22
1
9
222501
reserved
Adams, D., Alduino, C., Alfonso, K., Avignone, F., Azzolini, O., Bari, G., et al. (2022). New Direct Limit on Neutrinoless Double Beta Decay Half-Life of Te 128 with CUORE. PHYSICAL REVIEW LETTERS, 129(22), 1-9 [10.1103/PhysRevLett.129.222501].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/400010
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