Elastic scattering for on and the single-nucleon transfer reactions (, ) and (, ) have been measured at bombarding energies of 104, 138.5, and 216.6 MeV. A detailed optical model analysis of on elastic data from 80 to 216.6 MeV has been made. The Woods-Saxon potential parameters must be energy dependent to accurately reproduce the elastic data. Finite-range distorted-wave Born-approximation calculations employing both energy- independent and energy-dependent optical potentials are compared with the transfer data. With the exception of small shifts in angle, the distorted-wave Born approximation correctly predicts the shape of the angular distributions and the evolution of the relative single-particle strengths as functions of the bombarding energy. However, the distorted-wave Born approximation fails (by a factor of 2 to 3) to predict the observed energy dependence of the absolute single-particle transfer strength. It is demonstrated that this failure is not likely to be corrected by changes in the bound-state or optical-model potentials, if Woods-Saxon forms that fit the elastic data are used.
NUCLEAR REACTIONS + elastic, (, ), (, ), 138.5, 216.6 MeV, measured ; MeV optical-model and distorted-wave Born-approximation analysis, energy dependence of distorted-wave Born approximation.
- Received 3 January 1978
- Published in the issue dated July 1978
© 1978 The American Physical Society