New Direct Limit on Neutrinoless Double Beta Decay Half-Life of ¹²⁸$$\mathrm{Te}$$ with CUORE

Journal Article · Wed Nov 23 00:00:00 EST 2022 · Physical Review Letters

DOI:https://doi.org/10.1103/physrevlett.129.222501· OSTI ID:1924468

Adams, D.  Q. ^[1]; Alduino, C.; Alfonso, K.; Avignone, F.  T.; Azzolini, O.; Bari, G.; Bellini, F.; Benato, G.; Beretta, M.; Biassoni, M.; Branca, A.; Brofferio, C.; Bucci, C.; Camilleri, J.; Caminata, A.; Campani, A.; Canonica, L.; Cao, X.  G.; Capelli, S.; Capelli, C. ; Cappelli, L.; Cardani, L.; Carniti, P.; Casali, N.; Celi, E.; Chiesa, D.; Clemenza, M.; Copello, S.; Cremonesi, O.; Creswick, R.  J.; D’Addabbo, A.; Dafinei, I.; Del Corso, F.; Dell’Oro, S.; Di Domizio, S.; Di Lorenzo, S.; Dompè, V.; Fang, D.  Q.; Fantini, G.; Faverzani, M.; Ferri, E.; Ferroni, F.; Fiorini, E.; Franceschi, M.  A.; Freedman, S.  J.; Fu, S.  H.; Fujikawa, B.  K.; Ghislandi, S.; Giachero, A.; Gianvecchio, A.; Gironi, L.; Giuliani, A.; Gorla, P.; Gotti, C.; Gutierrez, T.  D.; Han, K.; Hansen, E.  V.; Heeger, K.  M.; Huang, R.  G.; Huang, H.  Z.; Johnston, J.; Keppel, G.; Kolomensky, Yu  G.; Kowalski, R.; Liu, R.; Ma, L.; Ma, Y.  G.; Marini, L.; Maruyama, R.  H.; Mayer, D.; Mei, Y.; Morganti, S.; Napolitano, T.; Nastasi, M.; Nikkel, J.; Nones, C.; Norman, E.  B.; Nucciotti, A.; Nutini, I.; O’Donnell, T.; Olmi, M.; Ouellet, J.  L.; Pagan, S.; Pagliarone, C.  E.; Pagnanini, L.; Pallavicini, M.; Pattavina, L.; Pavan, M.; Pessina, G.; Pettinacci, V.; Pira, C.; Pirro, S.; Pozzi, S.; Previtali, E.; Puiu, A.; Quitadamo, S.; Ressa, A.; Rosenfeld, C.; Sangiorgio, S.; Schmidt, B.; Scielzo, N.  D.; Sharma, V.; Singh, V.; Sisti, M.; Speller, D.; Surukuchi, P.  T.; Taffarello, L.; Terranova, F.; Tomei, C.; Vetter, K.  J.; Vignati, M.; Wagaarachchi, S.  L.; Wang, B.  S.; Welliver, B.; Wilson, J.; Wilson, K.; Winslow, L.  A.; Zimmermann, S.; Zucchelli, S.

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1. University of South Carolina, Columbia, SC (United States); CUORE Collaboration. et al.

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 (0νββ) decay. Its main goal is to investigate this decay in ¹³⁰Te, but its ton-scale mass and low background make CUORE sensitive to other rare processes as well. Here, in this Letter, we present our first results on the search for 0νββ decay of ¹²⁸Te, 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 ¹²⁸Te 0νββ decay half-life of T_1/2 > 3.6 x 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.

• Research Organization: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• Contributing Organization: CUORE Collaboration
• Grant/Contract Number: AC02-05CH11231
• OSTI ID: 1924468
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 22 Vol. 129; ISSN 0031-9007
• Publisher: American Physical Society (APS)
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
neutrinoless double beta decay