Abstract
Angular distributions have been measured for the reaction (, ) at MeV in the angular range 2-52.5° (lab). Exact finite-range distorted-wave-Born-approximation (DWBA) calculations were not able to reproduce the shape of the angular distributions even though similar calculations with the same optical model parameters were able to describe the (, ) reaction. Elastic scattering data for + and + were reanalyzed with the optical model assuming a real radius given by instead of the previously used . The optical model fits to the elastic scattering data and the finite-range DWBA calculations for the (, ) reaction data were equivalent with both optical parameter sets while the (, ) fit was greatly improved. The shape of the forward angle (, ) data indicates that has a larger ratio than found in the ground state of . Ratios of strengths in extracted by fitting the shape of the forward angle data with finite-range DWBA calculations of the cross sections are in excellent agreement with the calculations of Cohen and Kurath. In addition, the spectroscopic factor for is in good agreement with values found from other reactions when the Cohen and Kurath results for are assumed. The spectroscopic factor for the component in the ground state wave function which corresponds to has also been extracted. An upper limit for the magnitude of the cross section for the reaction (, ) has been determined.
NUCLEAR REACTIONS (, ) measured at MeV for , . Deduced and from finite-range DWBA analysis. (, ) measured at 15, 20, and 25°.
- Received 2 April 1975
DOI:https://doi.org/10.1103/PhysRevC.12.474
©1975 American Physical Society