Flavigny, F., Elseviers, J., Andreyev, A. N. orcid.org/0000-0003-2828-0262 et al. (36 more authors) (2019) Microscopic structure of coexisting 0+ states in Ni 68 probed via two-neutron transfer. Physical Review C - Nuclear Physics. 054332. 054332. ISSN 2469-9993
Abstract
The structure of low-spin states originating from shape-coexisting configurations in Ni284068 was directly probed via the two-neutron transfer reaction Ni66(t,p)Ni68 in inverse kinematics using a radioactive ion beam on a radioactive target. The direct feeding to the first excited 0+ state was measured for center-of-mass angles 4-16 and amounts to an integral of 4.2(16)% relative to the ground state. The observed difference in feeding of the 0+ states is explained by the transfer of neutrons, mainly in the pf shell below N=40 for the ground state, and across N=40 in the g9/2 orbital for the 02+, based on second-order distorted-wave Born approximation calculations combined with state-of-the-art shell-model two-nucleon amplitudes. However, the direct feeding to the 21+ state [29(3)%] is incompatible with these calculations.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2019, The Author(s). |
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: | 03 Jun 2019 14:50 |
Last Modified: | 16 Oct 2024 15:44 |
Published Version: | https://doi.org/10.1103/PhysRevC.99.054332 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1103/PhysRevC.99.054332 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:146910 |