E2 contribution to thep8+7Be Coulomb dissociation cross section

We have calculated the E1 and E2 contributions to the low-energy ${}_{}{}^8{}_{}{}^{}\mathrm{B}$ ${+}^{208}$Pb→p${+}^7$Be${+}^{208}$Pb Coulomb dissociation cross sections using the kinematics of a recent experiment at RIKEN. Using a potential model description of the ${}_{}{}^7{}_{}{}^{}\mathrm{Be}$(p,γ${)}^8$B reaction, we find that the E2 contributions cannot a priori be ignored in the analysis of the data. Its inclusion reduces the extracted ${}_{}{}^7{}_{}{}^{}\mathrm{Be}$(p,γ${)}^8$B S factor at solar energies by about 25%.