Two controversial states considered to have a large alpha cluster strength, the state at 8.54 MeV and the state at 11.7 MeV of , were examined in the Li,d) reaction at ELi)=50 MeV. The 11.7-MeV state was scarcely observed, if at all, for =5–35°, and the angular distribution for the 8.54-MeV state was unlike that of an L=0 transition. These results indicate that both states are unsuitable candidates for the lowest states of the parity doublet band of in the alpha cluster model.
- Received 6 July 1989
©1990 American Physical Society