Abstract
Alpha-particle spectra from thin beryllium and carbon targets have been taken at 47.5° laboratory angle and an alpha energy of 25.41 Mev. The center-of-mass spectra of both nuclei indicate that the four-body reactions and are greatly preferred over the three-body reactions and . Several inelastic levels of both nuclei appear, and the recoil-decay alpha particles from the 9.61-Mev level of are seen. The Fermi statistical model is invoked in an attempt to establish that the multibody reactions are reasonably representative of the proportions of the two- and three-cluster configurations in the ground states of the two nuclei, and that the three-cluster configurations are preferred.
- Received 12 October 1961
DOI:https://doi.org/10.1103/PhysRev.125.1339
©1962 American Physical Society