Relazione su invito
The NUMEN project: heavy-ions double charge exchange reactions towards $0 \nu\beta\beta$ NME determination.
C. Agodi per la Collaborazione NUMEN
NUMEN proposes an innovative technique to access the nuclear matrix elements, entering the expression of the life time of neutrinoless double beta decay (0$\nu\beta\beta$), by cross sections measurements of double charge exchange reactions. If detected, $0\nu\beta\beta$ would give direct evidence to the Majorana-nature of the neutrino and will provide the measurement of the average neutrino mass. A key aspect of the project is the use at Laboratori Nazionali del Sud of the Superconducting Cyclotron for the acceleration of the required high-resolution and low-emittance heavy-ion beams and of MAGNEX large-acceptance magnetic spectrometer for the detection of the ejectiles. Preliminary tests and experimental results are reported.