Results from the Cuore Experiment

Alessio Caminata , Douglas Adams , Chris Alduino , Krystal Alfonso , Frank Avignone Iii , Oscar Azzolini , Giacomo Bari , Fabio Bellini , Giovanni Benato , Andrea Bersani , Matteo Biassoni , Antonio Branca , Chiara Brofferio , Carlo Bucci , Alice Campani , Lucia Canonica , Xi-Guang Cao , Silvia Capelli , Luigi Cappelli , Laura Cardani , Paolo Carniti , Nicola Casali , Davide Chiesa , Nicholas Chott , Massimiliano Clemenza , Simone Copello , Carlo Cosmelli , Oliviero Cremonesi , Richard Creswick , Jeremy Cushman , Antonio d'Addabbo , Damiano d'Aguanno , Ioan Dafinei , Christopher Davis , Stefano Dell'Oro , Milena Deninno , Sergio Di Domizio , Valentina Dompè , Alexey Drobizhev , De-Qing Fang , Guido Fantini , Marco Faverzani , Elena Ferri , Fernando Ferroni , Ettore Fiorini , Massimo Alberto Franceschi , Stuart Freedman , Brian Fujikawa , Andrea Giachero , Luca Gironi , Andrea Giuliani (1) , Paolo Gorla , Claudio Gotti , Thomas Gutierrez , Ke Han , Karsten Heeger , Raul Hennings-Yeomans , Roger Huang , Huan Zhong Huang , Joe Johnston , Giorgio Keppel , Yury Kolomensky , Alexander Leder , Carlo Ligi , Yu-Gang Ma , Laura Marini , Maria Martinez , Reina Maruyama , Yuan Mei , Niccolo Moggi , Silvio Morganti , Tommaso Napolitano , Massimiliano Nastasi , Claudia Nones (2) , Eric Norman , Valentina Novati (1) , Angelo Nucciotti , Irene Nutini , Thomas O'Donnell , Jonathan Ouellet , Carmine Pagliarone , Marco Pallavicini , Luca Pattavina , Maura Pavan , Gianluigi Pessina , Valerio Pettinacci , Cristian Pira , Stefano Pirro , Stefano Pozzi , Ezio Previtali , Andrei Puiu , Carl Rosenfeld , Claudia Rusconi , Michinari Sakai , Samuele Sangiorgio , Benjamin Schmidt , Nick Scielzo , Vivek Singh , Monica Sisti , Danielle Speller , Luca Taffarello , Francesco Terranova , Claudia Tomei , Marco Vignati , Sachinthya Wagaarachchi , Barbara Wang , Bradford Welliver , Jeffrey Wilson , Kevin Wilson , Lindley Winslow , Tom Wise , Luigi Zanotti , Sergio Zimmermann , Stefano Zucchelli

1 CSNSM - Centre de Sciences Nucléaires et de Sciences de la Matière
2 DPhP - Département de Physique des Particules (ex SPP)

The Cryogenic Underground Observatory for Rare Events (CUORE) is the first bolometric experiment searching for neutrinoless double beta decay that has been able to reach the 1-ton scale. The detector consists of an array of 988 TeO 2 crystals arranged in a cylindrical compact structure of 19 towers, each of them made of 52 crystals. The construction of the experiment was completed in August 2016 and the data taking started in spring 2017 after a period of commissioning and tests. In this work we present the neutrinoless double beta decay results of CUORE from examining a total TeO 2 exposure of 86.3 kg yr , characterized by an effective energy resolution of 7.7 keV FWHM and a background in the region of interest of 0.014 counts / ( keV kg yr ) . In this physics run, CUORE placed a lower limit on the decay half-life of neutrinoless double beta decay of 130 Te > 1.3 · 10 25 yr (90% C.L.). Moreover, an analysis of the background of the experiment is presented as well as the measurement of the 130 Te 2 ν β β decay with a resulting half-life of T 1 / 2 2 ν = [ 7.9 ± 0.1 ( stat . ) ± 0.2 ( syst . ) ] × 10 20 yr which is the most precise measurement of the half-life and compatible with previous results.

Mots clés: neutrinoless double beta decay; CUORE; Majorana Neutrino; talk: Kolymbari 2018/07/04; double-beta decay: (0neutrino); tellurium: lifetime; lower limit; neutrino: Majorana: mass; background; energy resolution; observatory; bolometer: crystal; structure; experimental results

Domaines: Physique des Hautes Energies - Expérience [hep-ex]

Alessio Caminata, Douglas Adams, Chris Alduino, Krystal Alfonso, Frank Avignone Iii, et al.. Results from the Cuore Experiment. 7th International Conference on New Frontiers in Physics, Jul 2018, Kolymbari, Greece. pp.10, ⟨10.3390/universe5010010⟩. ⟨hal-02000010⟩