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. 2022 Nov 23;129(22):222501.
doi: 10.1103/PhysRevLett.129.222501.

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

D Q Adams  1 C Alduino  1 K Alfonso  2 F T Avignone  1 O Azzolini  3 G Bari  4 F Bellini  5   6 G Benato  7 M Beretta  8 M Biassoni  9 A Branca  9   10 C Brofferio  9   10 C Bucci  7 J Camilleri  11 A Caminata  12 A Campani  12   13 L Canonica  7   14 X G Cao  15 S Capelli  9   10 C Capelli  16 L Cappelli  7 L Cardani  6 P Carniti  9   10 N Casali  6 E Celi  7   17 D Chiesa  9   10 M Clemenza  9   10 S Copello  12   13 O Cremonesi  9 R J Creswick  1 A D'Addabbo  7 I Dafinei  6 F Del Corso  4 S Dell'Oro  9   10 S Di Domizio  12   13 S Di Lorenzo  7 V Dompè  5   6 D Q Fang  15 G Fantini  5   6 M Faverzani  9   10 E Ferri  9 F Ferroni  6   17 E Fiorini  9   10 M A Franceschi  18 S J Freedman  8   16 S H Fu  15 B K Fujikawa  16 S Ghislandi  7   17 A Giachero  9   10 A Gianvecchio  9   10 L Gironi  9   10 A Giuliani  19 P Gorla  7 C Gotti  9 T D Gutierrez  20 K Han  21 E V Hansen  8 K M Heeger  22 R G Huang  8 H Z Huang  2 J Johnston  14 G Keppel  3 Yu G Kolomensky  8   16 R Kowalski  23 R Liu  22 L Ma  2 Y G Ma  15 L Marini  7   17 R H Maruyama  22 D Mayer  14 Y Mei  16 S Morganti  6 T Napolitano  18 M Nastasi  9   10 J Nikkel  22 C Nones  24 E B Norman  25   26 A Nucciotti  9   10 I Nutini  9   10 T O'Donnell  11 M Olmi  7 J L Ouellet  14 S Pagan  22 C E Pagliarone  7   27 L Pagnanini  7 M Pallavicini  12   13 L Pattavina  7 M Pavan  9   10 G Pessina  9 V Pettinacci  6 C Pira  3 S Pirro  7 S Pozzi  9   10 E Previtali  9   10 A Puiu  7   17 S Quitadamo  7   17 A Ressa  5   6 C Rosenfeld  1 S Sangiorgio  25 B Schmidt  16 N D Scielzo  25 V Sharma  11 V Singh  8 M Sisti  9 D Speller  23 P T Surukuchi  22 L Taffarello  28 F Terranova  9   10 C Tomei  6 K J Vetter  8   16 M Vignati  5   6 S L Wagaarachchi  8   16 B S Wang  25   26 B Welliver  8   16 J Wilson  1 K Wilson  1 L A Winslow  14 S Zimmermann  29 S Zucchelli  4   30 CUORE Collaboration
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Free article

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

D Q Adams et al. Phys Rev Lett. .
Free article

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 (0νββ) decay. Its main goal is to investigate this decay in ^{130}Te, 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 0νββ decay of ^{128}Te, 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 ^{128}Te 0νββ decay half-life of T_{1/2}>3.6×10^{24} 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.

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