Excitation functions have been measured at several angles for the elastic, inelastic, ${}_{}{}^8{}_{}{}^{}\mathrm{Be}$, and $\alpha$-particle exit channels of the ${}_{}{}^{11}{}_{}{}^{}\mathrm{B}$+${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$ system. Nine resonances are identified in the energy range $E_{\mathrm{c}.\mathrm{m}.\mathrm{}}=9.4\mathrm{} \mathrm{to} 17.8$ MeV. A comparison with resonance data from the ${}_{}{}^8{}_{}{}^{}\mathrm{Be}$ exit channel of the ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$ + ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$, ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$ + ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$, and ${}_{}{}^9{}_{}{}^{}\mathrm{Be}$ + ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$ systems is presented.

NUCLEAR REACTIONS ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$(${}_{}{}^{11}{}_{}{}^{}\mathrm{B}$, ${}_{}{}^8{}_{}{}^{}\mathrm{Be}$), ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$(${}_{}{}^{11}{}_{}{}^{}\mathrm{B}$, $\alpha$), and elastic and inelastic scattering, $E_{\mathrm{c}.\mathrm{m}.\mathrm{}}=9.4-17.8\mathrm{}$ MeV; measured $\sigma (\theta ,E)$; deduced resonances.

• Received 9 January 1979

DOI:https://doi.org/10.1103/PhysRevC.19.2215