Angular correlation measurements in the Al27(16O, 12C) reaction at 65 MeV bombarding energy

An angular correlation measurement for the Al27(16O, 12C) reaction has been made at 65 MeV bombarding energy. The correlation was obtained by moving an detector through an angular range of +109+60°while the carbon detector was fixed at -30°. The angular correlation is compared to two previous experimental studies of the same reaction at 65 MeV, to a Monte Carlo calculation of the incomplete fusion reaction, and to an inelastic breakup calculation. The measured angular correlation peaks near the most forward measured angle (theta=11°). This suggests that an incomplete fusion process, which predicts a peak in the angular correlation at 41°, does not describe the + 12C coincidence production. The inelastic breakup calculations do a good job of predicting the peak positions in the 65, 77, and 87 MeV angular correlation data. The success of the inelastic breakup calculations supports the supposition that the + 12C production, in the 65 87 MeV energy range, is dominated by the sequential breakup process.