Baczyk, P., Satula, W, Dobaczewski, J. orcid.org/0000-0002-4158-3770 et al. (1 more author) (2019) Isobaric Multiplet Mass Equation within nuclear Density Functional Theory. Journal of physics g-Nuclear and particle physics. 03LT01. ISSN 0954-3899
Abstract
We extend the nuclear Density Functional Theory (DFT) by including proton-neutron mixing and contact isospin-symmetry-breaking (ISB) terms up to next-to-leading order (NLO). Within this formalism, we perform systematic study of the nuclear mirror and triple displacement energies, or equivalently of the Isobaric Multiplet Mass Equation (IMME) coefficients. By comparing results with those obtained within the existing Green Function Monte Carlo (GFMC) calculations, we address the fundamental question of the physical origin of the ISB effects. This we achieve by analyzing separate contributions to IMME coefficients coming from the electromagnetic and nuclear ISB terms. We show that the ISB DFT and GFMC results agree reasonably well, and that they describe experimental data with a comparable quality. Since the separate electromagnetic and nuclear ISB contributions also agree, we conclude that the beyond-mean-field electromagnetic effects may not play a dominant role in describing the ISB effects in finite nuclei.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2019 IOP Publishing Ltd. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details. |
Keywords: | nucl-th |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Funding Information: | Funder Grant number SCIENCE AND TECHNOLOGY FACILITIES COUNCIL (STFC) ST/M006433/1 SCIENCE AND TECHNOLOGY FACILITIES COUNCIL (STFC) ST/P003885/1 |
Depositing User: | Pure (York) |
Date Deposited: | 23 Jan 2019 16:00 |
Last Modified: | 02 Apr 2025 23:11 |
Published Version: | https://doi.org/10.1088/1361-6471/aaffe4 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1088/1361-6471/aaffe4 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:126751 |