Abstract
The single and mutual inelastic scattering of to its first excited state has been studied using the technique of particle- angular correlations. Several angles of observation of the ray have been employed as well as a wide range of closely-spaced scattering angles for the particles. rays were detected both in and out of the reaction plane. Measurements made at MeV have been compared with theoretical predictions calculated assuming an isolated resonance with total angular momentum equal to the grazing partial wave in the entrance channel. In addition, detailed comparisons have been made with the predictions of distorted-wave Born approximation (DWBA) and coupled channels calculations. The results at the various -ray angles are internally consistent, suggesting that the participating reaction amplitudes are fairly well determined from the data. Nevertheless, a completely model-independent description of the reaction mechanism has not been achieved. The comparisons with model calculations indicate that previous speculations concerning the dominant partial waves in these peripheral reactions are probably correct, but none of the specific models considered is able to give a quantitative account of the observed angular correlations. In particular, comparison with the band-crossing model reveals that this model predicts the dominance of a single partial wave to an extent not substantiated by the experimental data.
NUCLEAR REACTIONS (,),(,), MeV, measured particle- angular correlations, compared results to predictions of nuclear reaction models.
- Received 20 January 1981
DOI:https://doi.org/10.1103/PhysRevC.23.2492
©1981 American Physical Society
