Abstract
We have obtained new $^{16}\mathrm{O}$ + $^{28}\mathrm{Si}$ elastic scattering data at 215.2 MeV laboratory bombarding energy which show no evidence of strong rainbow scattering effects. We found that it is possible to simultaneously fit low and high energy data with the same energy-independent Woods-Saxon optical potential. We find that the imaginary potential for such fits is greater than or equal to the real potential in the surface region and that a marked preference is found for a real well depth of about 10 MeV, as determined in the region of the nuclear surface.NUCLEAR REACTIONS $^{28}\mathrm{Si}$($^{16}\mathrm{O}$, $^{16}\mathrm{O}$), ${E}_{L}=215.2$ MeV measured $\frac{d\ensuremath{\sigma}}{d\ensuremath{\Omega}}(\ensuremath{\theta})$; optical model analysis; deduced $\frac{W}{V}$ and energy-independent optical model parameters.
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