Speaker
Summary
The knowledge of Nuclear Matrix Elements (NME), that enter in the expression of the half-life of the neutrinoless double beta decay (0νββ), is a key aspect for the extraction of the neutrino mass from these measurements.
Relevant information on the NME can be obtained by measuring the cross sections of double charge exchange nuclear reactions (DCEX). The basic point is that the initial and final-state wave functions in the two processes are the same and the transition operators are similar.
First pioneering experimental results for the 40Ca(18O,18Ne)40Ar reaction at 270 MeV Superconducting Cyclotron (K800) beam incident energy has been obtained at the INFN-LNS laboratory in Catania using the MAGNEX large acceptance magnetic spectrometer, at zero degrees.
On the basis of the above mentioned ground-breaking achievement, the NUMEN project has been proposed with the aim to go deep insight in the HI-DCE studies on nuclei of interest in 0νββ decay, looking forward at the 0νββ NME determination.
In this work, some preliminary results achieved from the 116Sn(18O,18F)116In single charge exchange reaction and 116Sn(18O,18Ne)116Cd DCEX reaction at 270 MeV incident energy will be shown.
