Global phenomenological optical model potential for ${}^8\mathrm{Li}$ projectile

A set of global phenomenological optical model potential parameters for ${}^8\mathrm{Li}$ projectile is obtained by fitting the experimental data of ${}^8\mathrm{Li}$ elastic-scattering angular distributions from ${}^9\mathrm{Be}$ to ${}^{208}\mathrm{Pb}$ targets with incident energies between 11.0 and 33.1 MeV. By using the global optical model potential obtained, the elastic-scattering angular distributions are calculated and compared with the available experimental data. It is shown that the ${}^8\mathrm{Li}$ global potential can achieve satisfactory reproduction of the experiment.

Figure 1

The radial dependence of our global OMP at incident energies of 20, 50, 100, 150, 200, 250, and 300 MeV for ${}^{58}\mathrm{Ni}$: (a) real part, (b) imaginary part.

Figure 2

Comparison between volume integrals of per nucleon for ${}^{58}\mathrm{Ni}$ target calculated by using the ${}^8\mathrm{Li}$ global OMP (solid curve) and neutron (short-dashed curve) or proton global OMP (dashed curve). The energies have been scaled to $E_{in}/A_P$ with $A_P=8$ for ${}^8\mathrm{Li}$ and $A_P=1$ for neutron or proton: (a) real part $J_V$, (b) imaginary part $J_W$.

Figure 3

Comparison between the optical model calculations (solid lines) and experimental data [9, 10, 11] of elastic-scattering angular distributions for ${}^9\mathrm{Be}$ at different energies of the laboratory system. The curve and data points at the top represent true values, while the others are offset by factors of ${10}^{-1},{10}^{-2}$, and so on.

Figure 4

Same as Fig. 3, but for ${}^{12,13}\mathrm{C}$ [9, 12], and the other data are offset by factors of ${10}^{-1},{10}^{-4}$.

Figure 5

Same as Fig. 3, but for ${}^{14}\mathrm{N},{}^{27}\mathrm{Al},{}^{51}\mathrm{V}$ [9, 10, 13]; the other data are offset by factors of ${10}^{-2},{10}^{-4},{10}^{-5}$.

Figure 6

Same as Fig. 3, but for ${}^{58}\mathrm{Ni}$ [9, 13].

Figure 7

Same as Fig. 3, but for ${}^{208}\mathrm{Pb}$ at different energies of the mass-center system [14].