Neutrinoless double beta decay studied with configuration mixing methods

Understand

We study neutrinoless double beta decay of several isotopes with state-of-the-art beyond self-consistent mean field methods to compute the nuclear matrix elements (NME).

• Generating coordinate method with particle number and angular momentum projection (GCM+PNAMP) is used for finding mother and granddaughter states and evaluating transition operators between different nuclei.
• We analyze explicitly the role of the deformation, pairing and configuration mixing in the evaluation of the NME.