The ${}_{}{}^{13}{}_{}{}^{}$C${+}^{16}$O reaction has been studied by the kinematic coincidence technique in the $E_{\mathrm{c}.\mathrm{m}.\mathrm{}}$ range between 19 and 30 MeV. Angular distributions and excitation functions were compared with results from ${}_{}{}^{12}{}_{}{}^{}$C${+}^{17}$O over the same energy range. Notable differences were found between the elastic angular distributions for the two reactions. Optical-model fits were performed to determine which parameters were sensitive to these differences. Broad structures, like shape resonances, were most apparent in the ${}_{}{}^{13}{}_{}{}^{}$C${+}^{16}$O reaction, particularly for the excitation of collective states. Transfer reactions involving single-particle states show a more complex energy dependence.

• Received 12 October 1988

DOI:https://doi.org/10.1103/PhysRevC.39.1335