Elastic scattering investigation of radioactive B 13 and O 13 projectiles on a Pb 208 target at intermediate energies

Elastic scattering measurements were performed for the proton drip-line nucleus O13 (with Sp=1.512 MeV) and its partner mirror nucleus B13 (with Sn=4.878 MeV) projectiles on a Pb208 target at intermediate energies, namely Elab=413 and 254 MeV, respectively. These secondary radioactive ion beams were produced at the Radioactive Ion Beam Line in Lanzhou (RIBLL), Heavy-Ion Research Facility in Lanzhou (HIRFL). The elastic scattering angular distributions for these projectiles show a typical Fresnel diffraction peak at forward angles. Optical model analyses of the angular distributions, using double-folding and global potentials, were performed and different densities for these projectiles were probed.