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

Jonathan Billowes, Cory Binnersley, Mark Bissell, Kieran Flanagan, Adam Vernon, et al.

Research output: Contribution to journalArticlepeer-review


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 was reached for the electromagnetic moments of 47,49Sc. The single-particle behavior and nucleon-nucleon correlations are investigated with the electromagnetic moments of Z = 21 isotopes and N = 28 isotones as valence neutrons and protons fill the distinctive 0 f7/2 orbit, respectively, located between magic numbers, 20 and 28. The experimental data are interpreted with shell-model calculations using an effective interaction, and ab-initio valence-space in-medium similarity renormalization group calculations based on chiral interactions. These results highlight the sensitivity of nuclear electromagnetic moments to different types of nucleon-nucleon correlations, and establish an important benchmark for further developments of theoretical calculations.
Original languageEnglish
JournalPhysics Letters B
Publication statusAccepted/In press - 15 Mar 2022


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