Saiz-Lomas, J., Petri, M. orcid.org/0000-0002-3740-6106, Lee, I. Y. et al. (28 more authors) (2023) The spectroscopic quadrupole moment of the 21+ state of 12C:A benchmark of theoretical models. Physics Letters B. 138114. ISSN 0370-2693
Abstract
The spectroscopic quadrupole moment of the first 2+ state of 12C has been measured employing the Coulomb-excitation re-orientation technique. Our result of Qs(21+)=+9.3−3.8+3.5efm2 suggests a larger oblate deformation than previously reported. Combining this with the consistently re-analyzed adopted value, we present the most precise value to date of Qs(21+)=+9.5(18)efm2, which is consistent with a geometrical rotor description. This simple outcome is compared to state-of-the-art shell-model, mean-field, ab initio calculations, cluster-based and geometrical-like theories, which show varying degrees of emergent quadrupole collectivity.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2023 The Author(s). Published by Elsevier B.V. Funding Information: The authors acknowledge C. Bertulani, A. Vitturi, A. Moro, M. Gomez, J. M. Quesada, M. Zielinska, and C. Barton for enlightening discussions, and I. Moore for proposing and supporting the production of the 66 Ga source. This work was supported by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) – Projektnummer 279384907 – SFB 1245 , the Royal Society under contract number UF150476 , the UK STFC under grant numbers ST/L005727/1 , ST/P003885/1 , the UK STFC ERF fellowship ST/R004056/1 , and by the Director, Office of Science, Office of Nuclear Physics, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231 (LBNL). This project has received funding from the EU HORIZON2020 programme “Infrastructures”, project number 654002 (ENSAR2). U. Forsberg would like to thank Birgit and Hellmuth Hertz' Foundation for financial support. |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) The University of York > Faculty of Sciences (York) > Health Sciences (York) The University of York > Faculty of Social Sciences (York) > Education (York) |
Funding Information: | Funder Grant number SCIENCE AND TECHNOLOGY FACILITIES COUNCIL (STFC) ST/V001035/1 SCIENCE AND TECHNOLOGY FACILITIES COUNCIL (STFC) ST/P003885/1 |
Depositing User: | Pure (York) |
Date Deposited: | 04 Sep 2023 10:30 |
Last Modified: | 27 Dec 2024 00:24 |
Published Version: | https://doi.org/10.1016/j.physletb.2023.138114 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1016/j.physletb.2023.138114 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:203014 |
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