Interaction cross sections for light neutron-rich nuclei

Abstract

Interaction cross sections for nuclei with $Z=2--12$ on a ${}^{12}\mathrm{C}$ target are calculated in the Glauber model with matter densities obtained from Skyrme Hartree-Fock and relativistic Dirac potentials. The shell-model orbital occupations and separation energies are taken from configuration-mixing calculations and experimental spectroscopic data. Halo effects are present in the most neutron-rich C and N isotopes. The rms matter radii and interaction cross section exhibit a kink at $N=14$ which can be associated with a change in the mean-field potential when the ${1s}_{1/2}$ orbit is being filled.