Probing flavor models with Ge-76-based experiments on neutrinoless double-beta decay

Understand

The physics impact of a staged approach for double-beta decay experiments based on Ge-76 is studied.

• The scenario considered relies on realistic time schedules envisioned by the GERDA and the MAJORANA collaborations, which are jointly working towards the realization of a future larger scale Ge-76 experiment.
• Intermediate stages of the experiments are conceived to perform quasi background-free measurements, and different data sets can be reliably combined to maximize the physics outcome.
• The sensitivity for such a global analysis is presented, with focus on how neutrino flavor models can be probed already with preliminary phases of the experiments.