Multinucleon transfer reactions in the 206Pb + 118Sn system studied with the PRISMA spectrometer

Multinucleon transfer reactions were measured in the 206Pb + 118Sn system to study nucleon-nucleon correlation properties, whose information will be extracted via the transfer probabilities for one and two neutron transfers in an energy range from above to well below the Coulomb barrier. The aim of this thesis was to identify the nuclear charges of the Sn-like transfer products by analyzing the data at the highest measured bombarding energy (Elab=1200). The measurement of the transfer products was carried out with the large acceptance PRISMA spectrometer at lab=25o and 35o. After a sophisticated analysis procedure, the mass-integrated proton channels ranging from (-7p) to (+6p) and from (-8p) to (+5p) for the measurements at lab=25o and 35o, respectively, were identified. The extracted yields were compared with the semi-classical model GRAZING whose prediction that the proton stripping path is more favoured than the pick-up one was confirmed by the measurements at both angles. In the comparison with the previously studied 197Au+130Te heavy system, our data were much more underestimated giving us insight into the dominance of the deep-inelastic components as a result of the used higher bombarding energy. In this way, it is expected that at the lower energies the deep-inelastic components will be strongly reduced and the quasi-elastic components will be much more dominant providing the best condition for the nucleon-nucleon correlation studies. The data at lower bombarding energies, where it will be especially important to distinguish pure proton and pure neutron transfer channels, will be the subject of future studies. In this context, the present thesis serves also as a solid basis for such a challenging job.