Charge Radii of Neutron-Rich Scandium Isotopes and the Seniority Symmetry in the 0f7/2 Shell
Bai SW, Yang XF, Koszorús , Berengut JC, Billowes J, Bissell ML, Blaum K, Borschevsky A, Campbell P, Cheal B, Devlin CS, Flanagan KT, Garcia Ruiz RF, Heylen H, Holt JD, Hu BS, Kanellakopoulos A, Krämer J, Lagaki V, Maaß B, Malbrunot-Ettenauer S, Miyagi T, König K, Kortelainen M, Nazarewicz W, Neugart R, Neyens G, Nörtershäuser W, Reinhard PG, Reitsma ML, Rodríguez LV, Sommer F, Xu ZY (2025)
Publication Type: Journal article
Publication year: 2025
Journal
Book Volume: 134
Article Number: 182501
Journal Issue: 18
DOI: 10.1103/PhysRevLett.134.182501
Abstract
Nuclear charge radii of neutron-rich Sc47-49 isotopes were measured using collinear laser spectroscopy at CERN-ISOLDE. The new data reveal that the charge radii of scandium isotopes exhibit a distinct trend between N=20 and N=28, with Sc41 and Sc49 isotopes having similar values, mirroring the closeness of the charge radii of Ca40 and Ca48. Theoretical models that successfully interpret the radii of calcium isotopes could not account for the observed behavior in scandium radii, in particular the reduced odd-even staggering. Remarkably, the inclusion of the new Sc49 radius data has unveiled a similar trend in the charge radii of N=28 isotones and Z=20 isotopes when adding the protons atop the Ca48 core and the neutrons atop the Ca40 core, respectively. We demonstrate that this trend is consistent with the prediction of the seniority model.
Authors with CRIS profile
Involved external institutions
Peking University (PKU) / 北京大学
China (CN)
Katholieke Universiteit Leuven (KUL) / Catholic University of Leuven
Belgium (BE)
University of New South Wales (UNSW)
Australia (AU)
University of Manchester
United Kingdom (GB)
Max-Planck-Institut für Kernphysik (MPIK) / Max Planck Institute for Nuclear Physics
Germany (DE)
University of Groningen / Rijksuniversiteit Groningen
Netherlands (NL)
The University of Liverpool
United Kingdom (GB)
Massachusetts Institute of Technology (MIT)
United States (USA) (US)
Europäische Organisation für Kernforschung (CERN)
Switzerland (CH)
Triumf
Canada (CA)
Technische Universität Darmstadt
Germany (DE)
University of Jyväskylä / Jyväskylän yliopisto
Finland (FI)
Michigan State University
United States (USA) (US)
China (CN)
Katholieke Universiteit Leuven (KUL) / Catholic University of Leuven
Belgium (BE)
University of New South Wales (UNSW)
Australia (AU)
University of Manchester
United Kingdom (GB)
Max-Planck-Institut für Kernphysik (MPIK) / Max Planck Institute for Nuclear Physics
Germany (DE)
University of Groningen / Rijksuniversiteit Groningen
Netherlands (NL)
The University of Liverpool
United Kingdom (GB)
Massachusetts Institute of Technology (MIT)
United States (USA) (US)
Europäische Organisation für Kernforschung (CERN)
Switzerland (CH)
Triumf
Canada (CA)
Technische Universität Darmstadt
Germany (DE)
University of Jyväskylä / Jyväskylän yliopisto
Finland (FI)
Michigan State University
United States (USA) (US)
How to cite
APA:
Bai, S.W., Yang, X.F., Koszorús, ., Berengut, J.C., Billowes, J., Bissell, M.L.,... Xu, Z.Y. (2025). Charge Radii of Neutron-Rich Scandium Isotopes and the Seniority Symmetry in the 0f7/2 Shell. Physical Review Letters, 134(18). https://doi.org/10.1103/PhysRevLett.134.182501
MLA:
Bai, S. W., et al. "Charge Radii of Neutron-Rich Scandium Isotopes and the Seniority Symmetry in the 0f7/2 Shell." Physical Review Letters 134.18 (2025).
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