Particle-$\gamma$ angular correlations using the reactions ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}({}_{}{}^7{}_{}{}^{}\mathrm{Li},t\gamma ){}_{}{}^{20}{}_{}{}^{}\mathrm{Ne}$ and ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}({}_{}{}^6{}_{}{}^{}\mathrm{Li},d\gamma ){}_{}{}^{20}{}_{}{}^{}\mathrm{Ne}$ have been measured. The populations of the various magnetic substates in the residual nucleus were extracted from the data. The results indicate the presence of other reaction mechanisms competing with direct transfer of an $\alpha$ particle.

• Received 3 December 1970

DOI:https://doi.org/10.1103/PhysRevC.3.1565