Speaker
Description
The current status of the neutrinoless double beta decay (0νββ) search is summarized, ex-
ploiting the up-to-date knowledge of the oscillation parameters and of the recent theoretical
developments in the understanding of the 0νββ process, especially those concerning the nu-
clear description and its limitations. This also allows to infer expectations and uncertainties
for the experimental search for the 0νββ.
The strong relevance of post-Planck cosmological analyses for the study of 0νββ is pointed
out. Several combinations of data probing different scales indicate very stringent bounds
on the sum of the active neutrino masses, Σ. These developments have just become very
relevant for numerous laboratory investigations including the ones for the 0νββ search.
Finally, aiming at the neutrino mass hierarchy discrimination, the requirements in terms of
exposure, background index and energy resolution for a next (or next-to-next) generation
0νββ experimentare highlighted.
