Additional excitation functions for ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$(${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$, ${}_{}{}^8{}_{}{}^{}\mathrm{Be}$) ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$(g.s.) have been measured. A Legendre analysis of $\sigma (\theta ,E)$ confirms previous $J^{\pi }$ assignments of resonant structures and identifies new ones. A fragmentation of giant quasimolecular resonances provides a preferable interpretation of the resonance phenomena observed.

NUCLEAR REACTIONS ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$(${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$, ${}_{}{}^8{}_{}{}^{}\mathrm{Be}$) ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$(g.s.), measured $\sigma (\theta ,E)$, $E_{\mathrm{c}.\mathrm{m}.\mathrm{}}\simeq 9 \mathrm{to} 20$ MeV, deduced $J^{\pi }$ of resonances.

• Received 10 February 1978

DOI:https://doi.org/10.1103/PhysRevC.17.2248