Following the ideas of the double resonance mechanism we argue that recent measurements of the gamma/particle decay branching ratio in ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$+${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$ might indicate the existence of molecular resonances in inelastic channels. To detect molecular states in the elastic channel we suggest that the experiments be repeated at lower energies. To this end, we have calculated the $\gamma$-decay properties of ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$+${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$ molecular states in a microscopically founded potential model.

• Received 12 September 1983

DOI:https://doi.org/10.1103/PhysRevC.29.1358