Properties of intermediate width structure inC12(12C,12C)12C(O2+)

We have made detailed angular distribution measurements for the inelastic scattering channel ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$ ${(}^{12}$C${,}^{12}$C${)}^{12}$C(${\mathrm{O}}_2^{+}$) in the region of a known prominent structure at $E_{\mathrm{c}.\mathrm{m}.\mathrm{}=29.0\mathrm{}}$ MeV. Our analysis shows that the two partial waves l=16ħ and 18ħ contribute significantly to this structure. The width and centroid of the contribution from the dominant l value, 18ħ, are identical to those of a structure seen in the inelastic $2^{+}$ channel.