Total reaction cross section ${\sigma }_{\mathrm{reac}}$ of $\alpha$-induced reactions from elastic scattering: the example ${}^{140}$Ce($\alpha$,$\alpha$)${}^{140}$Ce

Peter Mohr

Angular distributions of elastic ${}^{140}$Ce($\alpha$,$\alpha$)${}^{140}$Ce scattering are analyzed in the framework of the optical model from low energies around the Coulomb barrier up to abou…