Speaker
Description
An experiment to study the interaction between the proton-rich nuclei $^7$Be and $^8$B and a vanadium target was recently performed using the RIBRAS system [1, 2, 3] (Radioactive Ion Beams in Brasil). The secondary beam was produced by the $^6$Li+$^3$He collision, where the $^6$Li primary beam was delivered by the 8UD Pelletron accelerator, and $^3$He gas target was sealed with havar foils. The superconductor solenoid current was varied in order to select the 8B beam, and the trajectories were focused inside the middle of the ISO-250 scattering chamber. Inside the chamber, the scattering targets were placed: a $^{51}$V (1.41 mg/cm$^2$) and $^{197}$Au (4.6 mg/cm$^2$), the latter used to determine the secondary beam intensities and to normalize the experimental data. The detection system was also mounted inside the ISO-250 chamber, consisting of six silicon $\Delta$E-E telescopes. The elastic scattering angular distribution of the $^6$Li, $^7$Be and $^8$B on both targets will be presented. The optical model analysis was performed, where the nuclear parameters and the total reaction cross section were obtained. Three-body CDCC calculations were performed to analyze the influence of the projectile breakup channel on the elastic scattering dynamics.
References
[1] R. Lichtenthaler et al, Eur. Phys. J. A 25, (2005) 733.
[2] A. Lepine-Szily et al, Eur. Phys. J. A 50, (2014) 128.
[3] R. Lichtenthaler et al, Few-Body Syst. 57, (2016) 157-163.
[4] U. Umbelino et al, Phys. Rev. C 106, (2022) 054602.
