Wimmer, K., Arici, T., Korten, W. et al. (41 more authors) (2020) Shape coexistence revealed in the N= Z isotope 72 Kr through inelastic scattering. European Physical Journal A. 159. ISSN 1434-601X
Abstract
The N= Z= 36 nucleus 72Kr has been studied by inelastic scattering at intermediate energies. Two targets, 9Be and 197Au, were used to extract the nuclear deformation length, δN, and the reduced E2 transition probability, B(E2). The previously unknown non-yrast 2 + and 4 + states as well as a new candidate for the octupole 3 - state have been observed in the scattering on the Be target and placed in the level scheme based on γ- γ coincidences. The second 2 + state was also observed in the scattering on the Au target and the B(E2;22+→01+) value could be determined for the first time. Analyzing the results in terms of a two-band mixing model shows clear evidence for a oblate-prolate shape coexistence and can be explained by a shape change from an oblate ground state to prolate deformed yrast band from the first 2 + state. This interpretation is corroborated by beyond mean field calculations using the Gogny D1S interaction.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2020. 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. |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Health Sciences (York) The University of York > Faculty of Sciences (York) > Physics (York) The University of York > Faculty of Sciences (York) > Computer Science (York) |
Funding Information: | Funder Grant number SCIENCE AND TECHNOLOGY FACILITIES COUNCIL (STFC) ST/L005727/1 SCIENCE AND TECHNOLOGY FACILITIES COUNCIL (STFC) ST/P003885/1 |
Depositing User: | Pure (York) |
Date Deposited: | 23 Jun 2020 08:10 |
Last Modified: | 18 Dec 2024 00:16 |
Published Version: | https://doi.org/10.1140/epja/s10050-020-00171-3 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1140/epja/s10050-020-00171-3 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:162231 |