We have applied S(l)-to-V(r) inversion to S matrices from coupled channel and CDCC calculations of Kamimura and co-workers in order to establish the local and l-independent dynamic polarization potential for ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ + ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$ scattering at 168, 216, and 311 MeV. The energy dependence and the character of the dynamic polarization potential (DPP) are discussed. It is shown that a consistent pattern of smooth DPPs can be found so long as no attempt is made to include within them a representation of S(l) where ‖S‖ is very small. Inclusion of further partial waves leads to wavy potentials, although information can be extracted from them by careful adjustment of the extent to which S(l) are fitted. The particular characteristics of the iterative perturbative (IP) inversion procedure play a key role in making these investigations possible. It turns out that certain aspects of the behavior we extract are very similar to those found previously for ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ on ${}_{}{}^{208}{}_{}{}^{}\mathrm{Pb}$ at the Coulomb barrier. The particular characteristics of the IP inversion procedure which are important for this work are emphasized.

• Received 3 December 1992

DOI:https://doi.org/10.1103/PhysRevC.47.1716