Inelastic proton scattering on ${}^{12}\mathrm{Be}$ was investigated by microscopic coupled-channel calculations with the theoretical wave function of ${}^{12}\mathrm{Be}$ obtained by antisymmetrized molecular dynamics. The experimental angular distribution of the inelastic scattering into ${}^{12}\mathrm{Be}$${}^{*}(2_1^{+})$ is successfully reproduced by the largely deformed states with dominant $\mathit{sd}$-shell configuration in the ground band. The radial dependence of the transition density for ${}^{12}\mathrm{Be}$$(2_1^{+})\to$${}^{12}\mathrm{Be}$$(0_1^{+})$ is quite different between protons and neutrons. It gives significant effects on the relation of the neutron transition strength to the inelastic cross section.

• Received 14 November 2007

DOI:https://doi.org/10.1103/PhysRevC.77.014604