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Article
Report number	arXiv:2311.01110
Title	Electromagnetic moments of the antimony isotopes $^{112−133}$Sb
Related title	Electromagnetic moments of the antimony isotopes 112−133Sb
Author(s)	Lechner, S. (CERN ; Vienna, Tech. U., Atominst.) ; Miyagi, T. (Darmstadt, EMMI ; Heidelberg, Max Planck Inst. ; TRIUMF) ; Xu, Z.Y. (Leuven U. ; Tennessee U.) ; Bissell, M.L. (Manchester U. ; CERN) ; Blaum, K. (Heidelberg, Max Planck Inst.) ; Cheal, B. (Liverpool U.) ; Devlin, C.S. (Liverpool U.) ; Garcia Ruiz, R.F. (CERN) ; Ginges, J.S.M. (Queensland U.) ; Heylen, H. (CERN ; Heidelberg, Max Planck Inst.) ; Holt, J.D. (TRIUMF) ; Imgram, P. (Darmstadt, EMMI ; Leuven U.) ; Kanellakopoulos, A. (Leuven U.) ; Koszorús, Á. (CERN ; Leuven U.) ; Malbrunot-Ettenauer, S. (CERN ; TRIUMF ; Toronto U.) ; Neugart, R. (Heidelberg, Max Planck Inst. ; Mainz U., Inst. Kernphys.) ; Neyens, G. (CERN ; Leuven U.) ; Nörtershäuser, W. (Darmstadt, EMMI) ; Plattner, P. (CERN ; Innsbruck U. ; Heidelberg, Max Planck Inst.) ; Rodríguez, L.V. (Heidelberg, Max Planck Inst. ; IJCLab, Orsay) ; Sanamyan, G. (Queensland U.) ; Stroberg, S.R. (Washington U., Seattle ; NIST, Boulder) ; Utsuno, Y. (Tokyo U. ; JAEA, Ibaraki) ; Yang, X.F. (Peking U., SKLNPT) ; Yordanov, D.T. (IJCLab, Orsay)
Publication	2023-10-26
Imprint	2023-11-02
Number of pages	9
In:	Phys. Lett. B 847 (2023) pp.138278
DOI	10.1016/j.physletb.2023.138278 (publication) 10.1016/j.physletb.2023.138278 (publication)
Subject category	nucl-th ; Nuclear Physics - Theory ; nucl-ex ; Nuclear Physics - Experiment
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.
Copyright/License	preprint: (License: CC BY-NC-ND 4.0) publication: © 2023-2024 The Authors (License: CC BY 4.0), sponsored by SCOAP³

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