Nucleus-Nucleus Potential inside the Strong-Absorption Radius fromO16+C12Elastic Scattering at 94 MeV/u

Abstract
The elastic-scattering angular distribution for the reaction of O16 on C12 has been measured at Elab=1503 MeV. Optical-model analysis shows that the data determine the nuclear potential between 4 and 6 fm, i.e., well inside the strong-absorption radius. Above θc.m.=3°, the main contribution to the cross section comes from negative-angle scattering; however, the measured angular distribution is not sensitive to the position of the nuclear rainbow.