The one- and two-nucleon transfer reactions ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$(${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$,${}_{}{}^{11}{}_{}{}^{}\mathrm{B}$)${}_{}{}^{13}{}_{}{}^{}\mathrm{N}$ and ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$(${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$,${}_{}{}^{10}{}_{}{}^{}\mathrm{B}$)${}_{}{}^{14}{}_{}{}^{}\mathrm{N}$ have been studied in the energy range of the ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$ + ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$ gross structure resonances in a search for related phenomena. Resonances are observed which are correlated with those seen in ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$ + ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$ inelastic scattering. Using Coulomb wave functions to estimate barrier penetrabilities, it is found that the reduced partial widths of the nucleon transfer channels are comparable to those of the inelastic channels.

NUCLEAR REACTIONS ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$(${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$, ${}_{}{}^{10}{}_{}{}^{}\mathrm{B}$) and ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$(${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$, ${}_{}{}^{11}{}_{}{}^{}\mathrm{B}$). Measured: $\sigma (E, \theta )$ $E_{\mathrm{lab}}=44\mathrm{} \mathrm{to} 80$ MeV for ${}_{}{}^{10}{}_{}{}^{}\mathrm{B}$ and $E_{\mathrm{lab}}=54\mathrm{} \mathrm{to} 68$ MeV for ${}_{}{}^{11}{}_{}{}^{}\mathrm{B}$. Deduced: resonance structure, reduced partial widths.

• Received 4 February 1980

DOI:https://doi.org/10.1103/PhysRevC.22.565