Global optical model potential for A=3 projectiles

A global optical model potential (GDP08) for He-3 projectiles has been obtained by simultaneously fitting the elastic scattering data of He-3 from targets of 40 <= A(T)<= 209 at incident energies of 30 <= E-inc <= 217 MeV. Uncertainties and correlation coefficients between the global potential parameters were obtained by using the bootstrap statistical method. GDP08 was found to satisfactorily account for the elastic scattering of H-3 as well, which makes it a global optical potential for the A=3 nuclei. Optical model calculations using the GDP08 global potential are compared with the experimental angular distributions of differential cross sections for He-3-nucleus and H-3-nucleus scattering from different targets of 6 <= A(T)<= 232 at incident energies of 4 <= E-inc <= 450 MeV. The optical potential for the doubly-magic nucleus Ca-40, the low-energy correction to the real potential for nuclei with 58 less than or similar to A(T)less than or similar to 120 at E-inc < 30 MeV, the comparison with double-folding model calculations and the CH89 potential, and the spin-orbit potential parameters are discussed.