New expectations and uncertainties on neutrinoless double beta decay

Understand

The hypothesis that the Majorana mass of ordinary neutrinos dominates the rate of neutrinoless double beta decay is investigated.

• Predictions from neutrino oscillations are updated.
• Nuclear uncertainties are discussed, evaluating the impact of the quenching of the axial vector coupling constant in the nuclear medium, recently pointed out by Iachello et al.
• [Phys.