Optical potential for the elastic scattering of ⁶Li projectile on 1p-shell nuclei

Abstract

A set of global optical potential parameters describing the elastic scattering of 6Li projectile on 1p-shell nuclei is obtained by fitting the experimental data of elastic scattering angular distributions for 9Be, [Formula: see text]B, [Formula: see text]B, [Formula: see text]C, [Formula: see text]C, [Formula: see text]C, [Formula: see text]N, [Formula: see text]O and [Formula: see text]O targets with incident energies from 4.0[Formula: see text]MeV to 210.0[Formula: see text]MeV and with 6Li and 7Li targets from 2.0[Formula: see text]MeV to 156.0[Formula: see text]MeV. The comparison is performed between the results calculated using the derived optical potential and the existing experimental data. The calculations agree well with the experimental data in the whole energy region except from 20[Formula: see text]MeV to 50[Formula: see text]MeV at backward angles, where there is an upward trend for the experimental data of angular distributions. Besides, the inelastic scattering contributions of the first excited states are deduced by the present global optical potential. The results are also in good agreement with the experimental data. In order to improve the description of elastic scattering, the inelastic scattering contributions of the first excited states are considered in the calculations between 20 and 50[Formula: see text]MeV. A satisfactory fit is obtained between them.

Description of elastic scattering for 7Li-induced reactions on 1p-shell nuclei*

“…Thus far, we have established the 6,7 Li GPOPs for the reactions of 6,7 Li on medium and heavy nuclei [6,7] via fitting of the experimental data of elastic scattering angular distributions and reaction cross sections in the target mass range of 24-209 below 250 MeV. However, this does not provide a good description of these reactions for targets with mass numbers below 20 [6][7][8][9]. Nuclear reactions of 6,7 Li on light targets are more complicated than those for heavy targets, such as the reactions of 6,7 Li induced 1p-shell nuclei.…”