: Matter-antimatter asymmetry underlines the incompleteness of the current understanding of particle physics. Neutrinoless double-beta decay (0vββ) may help explain this asymmetry, while unveiling the Majorana nature of the neutrino. The CUORE experiment searches for 0vββ of 130Te using a tonne-scale cryogenic calorimeter operated at milli-kelvin temperatures. We report no evidence of 0vββ and place a lower limit on the half-life of T1/2 > 3.5 × 1025 years (90% C.I.) with over 2 tonne·year TeO2 exposure. The tools and techniques developed for this result and the 5 year stable operation of nearly 1000 detectors demonstrate crucial infrastructure for a future-generation experiment capable of searching for 0vββ across multiple isotopes.

Constraints on lepton number violation with the 2 tonne · year CUORE Dataset

Caminata, A.;Campani, A.;Copello, S.;Di Domizio, S.;Pallavicini, M.;
2025-01-01

Abstract

: Matter-antimatter asymmetry underlines the incompleteness of the current understanding of particle physics. Neutrinoless double-beta decay (0vββ) may help explain this asymmetry, while unveiling the Majorana nature of the neutrino. The CUORE experiment searches for 0vββ of 130Te using a tonne-scale cryogenic calorimeter operated at milli-kelvin temperatures. We report no evidence of 0vββ and place a lower limit on the half-life of T1/2 > 3.5 × 1025 years (90% C.I.) with over 2 tonne·year TeO2 exposure. The tools and techniques developed for this result and the 5 year stable operation of nearly 1000 detectors demonstrate crucial infrastructure for a future-generation experiment capable of searching for 0vββ across multiple isotopes.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11567/1271296
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? 1
  • Scopus 5
  • ???jsp.display-item.citation.isi??? 0
social impact