Electromagnetic moments of scandium isotopes and N = 28 isotones in the distinctive 0f7/2 orbit

The electric quadrupole moment of 49Sc was measured by collinear laser spectroscopy at CERN-ISOLDE to be Qs=?0.159(8) eb, and a nearly tenfold improvement in precision reached for the electromagnetic moments 47,49Sc. single-particle behavior nucleon-nucleon correlations are investigated with Z=21 isotopes N=28 isotones as valence neutrons protons fill distinctive 0f7/2 orbit, respectively, located between magic numbers, 20 28. experimental data interpreted shell-model calculations using an effective interaction, ab-initio valence-space in-medium similarity renormalization group based on chiral interactions. These results highlight sensitivity nuclear different types correlations, establish important benchmark further developments theoretical calculations.