Nuclear matrix elements for 0 νβ − β − decays: comparative analysis of the QRPA, Shell Model and IBM predictions

OSVALDO CIVITARESE; J. SUHONEN

Conferencia; MEDEX; 2013

In this work we report on general properties of the nuclear matrix elements involved in the neutrinoless double β − decays (0 νβ − β − decays) of several nuclei. A summary of the values of the NMEs calculated along the years by the Jyväskylä?La Plata collaboration is presented. These NMEs, calculated in the framework of the quasiparticle random phase approximation (QRPA), are compared with those of the other available calculations, like the Shell Model (ISM) and the interacting boson model (IBA-2).