Abstract
The () reaction has been studied for targets of , , , , , and . Uniformly strong (∼15% of ground-state cross section) transitions were found to populate excited states in all of the actinide nuclides. The observed states were previously known for five of the actinide nuclei, and in these cases the states were characterized by small -decay hindrance factors and large matrix elements. They have been previously classified as vibrations. The strong excitation of the states in the () reactions, combined with all other available evidence, suggests that throughout the actinide mass range these states represent a stable collective excitation different in character from both the vibration and the most common formulation of the pair vibration. No such excitations were seen in the W-Pt region.
- Received 29 September 1971
DOI:https://doi.org/10.1103/PhysRevC.5.1380
©1972 American Physical Society