Fernández, A., Jungclaus, A., Doornenbal, P. et al. (26 more authors) (2021) Mirror energy differences above the 0f7/2 shell: First γ-ray spectroscopy of the Tz = −2 nucleus 56Zn. Physics Letters B. 136784. ISSN 0370-2693
Abstract
Excited states in 56Zn were populated following one-neutron removal from a 57Zn beam impinging on a Be target at intermediate energies in an experiment conducted at the Radioactive Isotope Beam Factory at RIKEN. Three γ rays were observed and tentatively assigned to the 6+→4+→2+→0+ yrast sequence. This turns 56Zn into the heaviest Tz=−2 nucleus in which excited states are known. The excitation-energy differences between these levels and the isobaric analogue states in the Tz=+2 mirror partner, 56Fe, are compared with large-scale shell-model calculations considering the full pf valence space and various isospin-breaking contributions. This comparison, together with an analysis of the mirror energy differences in the A=58, Tz=±1 pair 58Zn and 58Ni, provides valuable information with respect to the size of the monopole radial and the isovector multipole isospin-breaking terms in the region above doubly-magic 56Ni.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | ©2021 The Author(s). Published by Elsevier B.V. |
Dates: |
|
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/P003885/1 SCIENCE AND TECHNOLOGY FACILITIES COUNCIL (STFC) ST/V001035/1 |
Depositing User: | Pure (York) |
Date Deposited: | 23 Nov 2021 17:00 |
Last Modified: | 30 Nov 2024 01:14 |
Published Version: | https://doi.org/10.1016/j.physletb.2021.136784 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1016/j.physletb.2021.136784 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:180814 |
Download
Filename: 1_s2.0_S0370269321007243_main.pdf
Description: 1-s2.0-S0370269321007243-main
Licence: CC-BY 2.5