Elman, B., Gade, A., Janssens, R. V.F. et al. (21 more authors) (2019) Probing the role of proton cross-shell excitations in Ni 70 using nucleon knockout reactions. Physical Review C. 034317. ISSN 2469-9993
Abstract
The neutron-rich Ni isotopes have attracted attention in recent years because of the occurrence of shape or configuration coexistence. We report on the difference in population of excited final states in Ni70 following γ-ray tagged one-proton, one-neutron, and two-proton knockout from Cu71, Ni71, and Zn72 rare-isotope beams, respectively. Using variations observed in the relative transition intensities, signaling the changed population of specific final states in the different reactions, the role of neutron and proton configurations in excited states of Ni70 is probed schematically, with the goal of identifying those that carry, as leading configuration, proton excitations across the Z=28 shell closure. Such states are suggested in the literature to form a collective structure associated with prolate deformation. Adding to the body of knowledge for Ni70, 29 new transitions are reported, of which 15 are placed in its level scheme.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2019 American Physical Society. 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) > Physics (York) |
Depositing User: | Pure (York) |
Date Deposited: | 22 Jul 2020 10:50 |
Last Modified: | 18 Dec 2024 00:17 |
Published Version: | https://doi.org/10.1103/PhysRevC.100.034317 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1103/PhysRevC.100.034317 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:163624 |
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Filename: PhysRevC.100.034317.pdf
Description: Probing the role of proton cross-shell excitations in 70Ni using nucleon knockout reactions