Abstract
Differential cross sections for inelastic scattering of and from a cooled gas target, enriched in (49.9%), were measured at an incident energy MeV between . Data were also taken on a natural oxygen and an enriched target (94.9%) to allow a substraction of the and yields from the data taken with the target. A microscopic distorted wave impulse approximation analysis of five collectively enhanced transitions to the lowest states in was performed using transition densities from three different models. The data were fitted best with transition densities derived from a large-space shell-model calculation; provided that their , isoscalar parts were enhanced by a factor (). Both the and data for the five transitions in and the transition to the state in (6.13 MeV) were fitted using a single polarization charge, . Evidence was found for strength near 8 MeV and for strength to two states at 15.7 and 17.1 MeV.
- Received 30 March 1984
DOI:https://doi.org/10.1103/PhysRevC.30.1989
©1984 American Physical Society