Abstract
The elastic scattering of alpha particles by has been observed for alpha energies between 2.0 and 3.9 Mev and for . The solid targets of 38.6% were at least 8 kev thick. Energies of both the incident and scattered particles were measured with cylindrical electrostatic analyzers. The off-resonance cross sections were normalized to those derived from dispersion theory. Dispersion formalism applied to and data yields the resonance energies, angular momenta, parities, and reduced widths of several levels. The levels of considered had the following resonant energies, parities, and values: 8.051 Mev ( or ), 8.222 Mev (), 8.293 Mev (), 8.966 Mev (≥), and 9.0 to 9.2 Mev two levels, either () or ().
- Received 23 January 1958
DOI:https://doi.org/10.1103/PhysRev.111.277
©1958 American Physical Society