Isovector density and isospin impurity in 40Ca

We study isoscalar (IS) and isovector (IV) densities in ${}^{40} \mathrm{Ca}$ comparison with theoretical calculated by Skyrme Hartree-Fock (HF) models. The charge symmetry breaking the independence forces are introduced to effect on IV density. of isospin mixing ground-state density is examined using particle-vibration coupling model taking into account collective giant monopole excitation. show a clear correlations impurity within HF model. extract for first time experimental information from magnitude