Speaker
Description
We will present progress with the analysis of experiment 23.72, conducted in April 2024 at LNL with the aim of studying multinucleon transfer (MNT) reactions in the $\mathrm{^{48}Ca} + \mathrm{^{208}Pb}$ system. This choice of nuclei allowed for the investigation of transfer processes near doubly-magic nuclei and, as $\mathrm{^{48}Ca}$ is also notably neutron-rich, with fairly symmetric population of both neutron and proton pick-up and stripping channels. The PRISMA+AGATA experiment employed a $\mathrm{^{48}Ca}$ beam at $250\,\mathrm{MeV}$, supplied by the PIAVE-ALPI accelerator complex, impinging on a $\mathrm{^{208}Pb}$ target. The PRISMA magnetic spectrometer was used to identify the light reaction products. To cover the expected angular distribution range, PRISMA was set to two angles: $72^\circ$ (near the grazing angle) and $64^\circ$. Using PRISMA coupled with the AGATA gamma-tracking array is crucial to gain more direct insight into the heavy reaction products, as well as into their survival rates and yields.
So far, progress has been made in the analysis of the PRISMA data, with indications of proton transfer channels up to $(+6p)$ and down to $(-4p)$. Preliminary results for masses and Q values will be shown. The ultimate goal is to obtain angular distributions and cross sections for all open transfer channels and thus further explore MNT as a promising tool to populate neutron-rich regions of the nuclide chart south of $\mathrm{^{208}Pb}$, with cross sections large enough to study their structure. The results will also be compared with those of experiment 22.97. The goal is to obtain transfer probabilities for proton transfer channels at larger distances of closest approach.