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Abstract.Recently, experimental measurements of elastic scattering angular distributions for the system 7 Li+ 58 Ni at ten different energies around the Coulomb barrier were made by the Heavy-Ion Group. The measurements were made at the Tandem Van de Graaff Particle Accelerator Laboratory in the National Institute for Nuclear Research (ININ) in Mexico. In this work, preliminary elastic scattering angular distributions for five energies (E lab = 12.0, 12.5, 13.0, 13.5 and 14.22 MeV) are presented. The preliminary experimental data were analyzed using the São Paulo Optical Model Potential (SPP) which is based on a double-folding potential, reproducing very well these data. A comparison is made with old data reported back in 1973 and in 2012. Further analysis is in progress in order to fully understand this particular system, specially because 7 Li is known to be a weakly bound nucleus.

Elastic scattering angular distributions for the 9 Be+ 51 V system were measured at three near Coulomb barrier energies, E lab = 16.35, 17.44 and 18.53 MeV. The data were analyzed by using a Semimicroscopic Optical Model. This combines a microscopic calculation of the mean-field double folding potential and a phenomenological construction of the dynamical polarization potential. The calculations reproduced the data very well and the total reaction cross sections were also calculated.

Abstract. Calculations of breakup and direct proton transfer for the 8 B+ 58 Ni system at energies around the Coulomb barrier (E B,lab =22.95 MeV) were performed by the continuum-discretized coupled channels (CDCC) method and the coupled-reactionchannels (CRC) method, respectively. For the 7 Be + 58 Ni interaction, we used a semimicroscopic optical model potential (OMP) that combines microscopic calculations of the mean-field double folding potential and a phenomenological construction of the dynamical polarization potential (DPP). The 7 Be angular distribution at E lab =25.75 MeV from the 8 B breakup on 58 Ni was calculated and the spectroscopic factor for 8 B → 7 Be+p vertex, S expt = 1.10 ± 0.05, was deduced. The astrophysical S 17 (0) factor was calculated equal to 20.7 ±1.1 eV·b, being in good agreement with the previously reported values.