Neutron skin of ⁴⁸Ca deduced from interaction cross-section

The neutron skin thickness of [Formula: see text]Ca was deduced from the interaction cross-section by adopting a microscopic optical potential. The optical potential used was constructed by folding a chiral [Formula: see text] matrix and the Skyrme mean-field densities renormalized by considering the information of the interaction cross-section. The result was [Formula: see text] fm.