<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msup><mml:mi>β</mml:mi><mml:mn>2</mml:mn></mml:msup></mml:math> corrections to spherical energy-density functional calculations for root-mean-square charge radii

Root-mean-square charge radii are discussed in terms of spherical Energy Density Functional (EDF) models corrected for quadrupole deformations. Comparisons between experiment and theory made the absolute all even-even nuclei, isotonic shift cadmium tin isotopes, isotopic shifts calcium isotopes nuclei with $ N=28 $. We conclude that data well described this approach, except sharp rise just after neutron magic numbers.