Abstract
We study theoretically the elastic scattering of $^{8}\mathrm{B}$ from $^{12}\mathrm{C}$ at ${E}_{\mathrm{lab}}=95$ MeV. The $^{8}\mathrm{B}$ nucleus consists of weakly bound $^{7}\mathrm{Be}$ and proton, while the $^{7}\mathrm{Be}$ nucleus has an internal cluster structure of $\ensuremath{\alpha}+{}^{3}\mathrm{He}$. We treat the last proton in $^{8}\mathrm{B}$ in the adiabatic recoil approximation and also take into account the excitation of $^{7}\mathrm{Be}$ including resonance states by a coupled-channel method with consideration of the cluster structure. It turns out that the excitation to the resonance state of $^{7}\mathrm{Be}$ in $^{8}\mathrm{B}$ is important for the $^{8}\mathrm{B}$ elastic scattering.
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