Microscopic calculation of inelastic proton scattering off 18O, 10Be, 12Be, and 16C for study of neutron excitation in neutron-rich nuclei
Abstract
The microscopic coupled-channel calculation of inelastic proton scattering is performed for the study of neutron excitations in 2+1 states of 18O, 10Be, 12Be, and 16C. Proton-nucleus potentials in the coupled-channel calculation are microscopically derived by folding the Melbourne g-matrix NN interaction with matter and transition densities of target nuclei obtained by the structure model calculation of antisymmetrized molecular dynamics. The calculated result reasonably reproduces the elastic and inelastic proton scattering cross sections, and supports the dominant contribution of neutron in the 2+1 excitation of 12Be and 16C as well as 18O. Sensitivity of the inelastic scattering cross sections to the neutron transition density is discussed. The exotic feature of the neutron transition density with the amplitude in the outer region in 12Be and 16C is focused.