Abstract
An out-of-plane (,) angular correlation measurement has been made to determine the spin-flip contribution to the (,) cross sections for the , ( MeV) and , ( MeV) excitations in at proton energies near 27 MeV. A definite isospin dependence is observed in the experimental spin-flip angular distributions for the two states. Microscopic distorted wave calculations based on a realistic matrix interaction give a rough account of the trends in the spin-flip data, but underestimate the experimental differential cross sections. It is concluded that reaction contributions calculated in the distorted wave approximation are insufficient to gain a complete understanding of the data.
NUCLEAR REACTIONS (,) MeV; measured spin-flip states, DWBA analysis.
- Received 26 October 1979
DOI:https://doi.org/10.1103/PhysRevC.21.1153
©1980 American Physical Society