Abstract
+ elastic scattering angular distributions have been measured at 12 bombarding energies over a range . The elastic matrix elements were parametrized in the framework of a complex Woods-Saxon potential. The measured angular distributions exhibit some irregular structure at surprisingly low energies—and no optical potential has been found to reproduce this low energy structure. Three surface-transparent optical potentials (one of which has energy-independent well depths) have been found to give a good overall account of the data. All three of these potentials predict essentially identical cross sections for angles ≲ 120°; additionally, they predict strong but strikingly different oscillations in the 180° elastic scattering excitation function.
NUCLEAR REACTIONS (, ), measured MeV; deduced optical model parameters.
- Received 16 April 1979
DOI:https://doi.org/10.1103/PhysRevC.20.851
©1979 American Physical Society