Electromagnetic moments of the antimony isotopes ${}^{112-133}$Sb

Abstract

Nuclear moments of the antimony isotopes ${}^{113-133}$Sb are measured by collinear laser spectroscopy and used to benchmark phenomenological shell-model and \textit{ab initio} calculations in the valence-space in-medium similarity renormalization group (VS-IMSRG). The shell-model calculations reproduce the electromagnetic moments over all Sb isotopes when suitable effective $g$-factors and charges are employed. Good agreement is achieved by VS-IMSRG for magnetic moments on the neutron-deficient side for both odd-even and odd-odd Sb isotopes while its results deviate from experiment on the neutron-rich side. When the same effective $g$-factors are used, VS-IMSRG agrees with experiment nearly as well as the shell model. Hence, the wave functions are very similar in both approaches and missing contributions to the M1 operator are identified as the cause of the discrepancy of VS-IMSRG with experiment. Electric quadrupole moments remain more challenging for VS-IMSRG.

References in corpus (9)

• Chiral effective field theory and nuclear forces
• Improved nuclear matter calculations from chiral low-momentum interactions
• A nucleus-dependent valence-space approach to nuclear structure
• Converged ab initio calculations of heavy nuclei
• Systematics of E2 strength in the sd-shell with the valence-space in-medium similarity renormalization group
• Ground State Electromagnetic Moments of ${}^{37}$Ca
• The hyperfine anomaly in heavy atoms and its role in precision atomic searches for new physics
• Empirical determination of the Bohr-Weisskopf effect in cesium and improved tests of precision atomic theory in searches for new physics
• The Bohr-Weisskopf effect: from hydrogenlike-ion experiments to heavy-atom calculations of the hyperfine structure

Cited by in corpus (6)

• Quantum Monte Carlo calculations of magnetic form factors in light nuclei
• Electromagnetic moments of the odd-mass nickel isotopes ${}^{59-67}$Ni
• Electromagnetic moments in the Sn-Gd region determined within nuclear DFT
• The hyperfine anomaly in mercury and test of the Moskowitz-Lombardi rule
• The spin-flip-induced quadrupole resonance in odd-$A$ exotic atoms
• In-Medium Similarity Renormalization Group at Finite Temperature