Electromagnetic moments of scandium isotopes and N =28 isotones in the distinctive 0 f(7/2) orbit

Bai, SW, Koszorus, A, Hu, BS, Yang, XF, Billowes, J, Binnersley, CL, Bissell, ML, Blaum, K, Campbell, P, Cheal, B
et al (show 24 more authors) (2022) Electromagnetic moments of scandium isotopes and N =28 isotones in the distinctive 0 f(7/2) orbit. PHYSICS LETTERS B, 829. p. 137064.

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The electric quadrupole moment of $^{49}$Sc was measured by collinear laser spectroscopy at CERN-ISOLDE to be $Q_{\rm s}=-0.159(8)$ $e$b, and a nearly tenfold improvement in precision was reached for the electromagnetic moments of $^{47,49}$Sc. 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 $0f_{7/2}$ 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.

Item Type: Article
Additional Information: Accepted by Physics Letters B (2022)
Uncontrolled Keywords: Collinear laser spectroscopy, Electromagnetic moments, Nucleon-nucleon correlation, Ab-initio calculation
Divisions: Faculty of Science and Engineering > School of Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 11 May 2022 13:54
Last Modified: 18 Jan 2023 21:03
DOI: 10.1016/j.physletb.2022.137064
Open Access URL: https://www.sciencedirect.com/science/article/pii/...
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3154629