Shape coexistence in nuclei appears to be unique in the realm of finite many-body quantum
systems. It differs from the various geometrical arrangements that sometimes occur in a …

Neutrinoless double-beta decay, which is a very old and yet elusive process, is reviewed. Its
observation will signal that the lepton number is not conserved and that the neutrinos are …

Neutrino–nuclear responses associated with astro-neutrinos, single beta decays and double
beta decays are crucial in studies of neutrino properties of interest for astro-particle physics …

We review the particle physics aspects of neutrino-less double beta decay. This process can
be mediated by light massive Majorana neutrinos (standard interpretation) or by something …

Background: Direct determination of the neutrino mass through double-β decay is at the
present time one of the most important areas of experimental and theoretical research in …

We present a new effective interaction for shell-model calculations in the model space
consisting of the single-particle orbits 1 p 3/2, 0 f 5/2, 1 p 1/2, and 0 g 9/2. Starting with a …

We review the status and prospects of heavy-ion double charge exchange (HI-DCE)
reactions. Their important role for nuclear reaction, nuclear structure and double beta-decay …

In this review article we discuss the present status of direct nuclear reactions and the nuclear
structure aspects one can study with them. We discuss the spectroscopic information we can …

The observation of neutrinoless double beta decay (DBD) will have important
consequences. First it will signal that lepton number is not conserved and the neutrinos are …

The article describes the main achievements of the NUMEN project together with an
updated and detailed overview of the related R&D activities and theoretical developments …