Speaker
Description
Nuclear radius and density distribution are fundamental quantities that characterize the ground-state properties. Proton elastic scattering at intermediate energies is a powerful method for deducing matter distribution. To extend this technique to radioactive isotopes (RIs), we have developed various experimental tools, including particle identification detectors for the RI beams, a solid hydrogen target, and a recoil proton spectrometer. Using these devices, we performed a proton elastic scattering experiment on the double magic nucleus, $^{132}$Sn at 200 MeV/nucleon at RIKEN RIBF. The neutron skin structure of $^{132}$Sn is known to have a strong correlation with the symmetry energy of nuclear matter, as that of $^{208}$Pb. However, its matter radius had not been measured prior to this study. In this presentation, we will report the details of the experiment and its results. In addition, we will discuss the matter distribution and radius of $^{132}$Sn, which were extracted for the first time by analyzing the obtained angular distribution of the cross-section using relativistic impulse approximation calculations.
| Presentation Style | Oral Presentation |
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