The interaction of ${}_{}{}^6{}_{}{}^{}\mathrm{Li}$ with ${}_{}{}^6{}_{}{}^{}\mathrm{Li}$ was found to yield three ${}_{}{}^4{}_{}{}^{}\mathrm{He}$ nuclei via a direct process, as well as through intermediate ${}_{}{}^8{}_{}{}^{}\mathrm{Be}$ states. Large peaks attributed to direct interactions were observed in the experimental data at bombarding energies of 2.0, 6.0, and 13.0 MeV. These peaks were fitted using a simple model which assumed an $\alpha +d$ cluster structure for the ${}_{}{}^6{}_{}{}^{}\mathrm{Li}$ nuclei and an interaction potential which acted only between the deuterons.

• Received 14 February 1972

DOI:https://doi.org/10.1103/PhysRevC.6.1172