Speaker
Description
The search for neutrinoless double-beta decay ($0\nu\beta\beta$) represents a unique probe to test the violation of the $B-L$ symmetry, potentially revealing the matter-creating processes essential for explaining the baryon asymmetry of the Universe. While the upcoming generation of experiments aims to fully cover the Inverted Ordering region ($m_{\beta\beta} \sim 15$~meV), a definitive exploration of the neutrino mass parameter space requires a further leap in sensitivity.
In this work, we present the concept of \textbf{CUPID-1ton}, a proposed evolution of the CUPID experiment designed to scale the bolometric technique to the multi-ton level. By deploying a massive array of $Li_2^{100}MoO_4$ scintillating bolometers, CUPID-1ton aims to increase sensitivity by an order of magnitude, accessing the large fraction of parameter space corresponding to the \textit{Normal Ordering} , while significantly extending the coverage of the \textit{Inverted Ordering} region.
We discuss the technological breakthroughs required to achieve this goal, specifically focusing on the reduction of the background index to $\sim 10^{-6}$~counts/keV/kg/yr.