Impact of Two-Body Currents on Magnetic Dipole Moments of Nuclei-Reference-Cited by-同舟云学术

Impact of Two-Body Currents on Magnetic Dipole Moments of Nuclei

Published:2024-06-07 Issue:23 Volume:132 Page:
ISSN:0031-9007
Container-title:Physical Review Letters
language:en
Short-container-title:Phys. Rev. Lett.

Author:

Miyagi T.¹²³^ORCID,Cao X.⁴,Seutin R.³¹²,Bacca S.⁵⁵^ORCID,Ruiz R. F. Garcia⁶^ORCID,Hebeler K.¹²³^ORCID,Holt J. D.⁷⁸,Schwenk A.¹²³^ORCID

Affiliation:

1. Technische Universität Darmstadt

2. ExtreMe Matter Institute EMMI

3. Max-Planck-Institut für Kernphysik

4. University of Illinois at Urbana-Champaign

5. Johannes Gutenberg-Universität Mainz

6. Massachusetts Institute of Technology

7. TRIUMF

8. McGill University

Abstract

We investigate the effects of two-body currents on magnetic dipole moments of medium-mass and heavy nuclei using the valence-space in-medium similarity renormalization group with chiral effective field theory interactions and currents. Focusing on near doubly magic nuclei from oxygen to bismuth, we have found that the leading two-body currents globally improve the agreement with experimental magnetic moments. Moreover, our results show the importance of multishell effects for Ca41, which suggest that the Z=N=20 gap in Ca40 is not as robust as in Ca48. The increasing contribution of two-body currents in heavier systems is explained by the operator structure of the center-of-mass dependent Sachs term.

Published by the American Physical Society

2024

Funder

European Research Council

Horizon 2020 Framework Programme

Deutsche Forschungsgemeinschaft

Natural Sciences and Engineering Research Council of Canada

U.S. Department of Energy

National Research Council Canada

Publisher

American Physical Society (APS)

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