Constraints on Lepton Number Violation with the 2 tonne$\cdot$yr CUORE Dataset

Understand

Matter-antimatter asymmetry underlines the incompleteness of the current understanding of particle physics.

• Neutrinoless double-beta decay ($0\nu \beta\beta$) may help explain this asymmetry, while unveiling the Majorana nature of the neutrino.
• The CUORE experiment searches for $0\nu \beta\beta$ of $^{130}$Te using a tonne-scale cryogenic calorimeter operated at milli-kelvin temperatures.
• We report no evidence of $0\nu \beta\beta$ and place a lower limit on the half-life of $T_{1/2} >3.5 \times$ 10$^{25}$~years (90\% C.I.) with over 2~tonne$\cdot$year TeO$_2$ exposure.