The reactions ${}_{}{}^9{}_{}{}^{}\mathrm{Be}({}_{}{}^3{}_{}{}^{}\mathrm{He},\gamma \gamma )$, ${}_{}{}^{10}{}_{}{}^{}\mathrm{B}\mathrm{}(d,p)\mathrm{}$, ${}_{}{}^{10}{}_{}{}^{}\mathrm{B}(d,\alpha )$, and ${}_{}{}^{10}{}_{}{}^{}\mathrm{B}(d,\gamma \gamma )$ have been used to search for the lowest $T=2\mathrm{}$ state of ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$. A possible candidate for the state has been observed in ${}_{}{}^9{}_{}{}^{}\mathrm{Be}$ (${}_{}{}^3{}_{}{}^{}\mathrm{He},\gamma \gamma$) at $E_x=27.585\mathrm{}\pm 0.005$ MeV. For the other three reactions, no resonances were observed and upper limits have been set on partial widths.

• Received 7 July 1970

DOI:https://doi.org/10.1103/PhysRevLett.25.877