Cruz, S., Bender, P. C., Krücken, R. et al. (32 more authors) (2018) Shape coexistence and mixing of low-lying 0+ states in 96Sr. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. pp. 94-99. ISSN 0370-2693
Abstract
The low energy excited 02,3 + states in 96Sr are amongst the most prominent examples of shape coexistence across the nuclear landscape. In this work, the neutron [2s1/2]2 content of the 01,2,3 + states in 96Sr was determined by means of the d(95Sr, p) transfer reaction at the TRIUMF-ISAC2 facility using the SHARC and TIGRESS arrays. Spectroscopic factors of 0.19(3) and 0.22(3) were extracted for the 96Sr ground and 1229 keV 0+ states, respectively, by fitting the experimental angular distributions to DWBA reaction model calculations. A detailed analysis of the γ-decay of the isomeric 03 + state was used to determine a spectroscopic factor of 0.33(13). The experimental results are compared to shell model calculations, which predict negligible spectroscopic strength for the excited 0+ states in 96Sr. The strengths of the excited 02,3 + states were also analyzed within a two-level mixing model and are consistent with a mixing strength of a2=0.40(14) and a difference in intrinsic deformations of |Δβ|=0.31(3). These results suggest coexistence of three different configurations in 96Sr and strong shape mixing of the two excited 0+ states.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2018 The Author(s). |
Keywords: | Shape coexistence,Single-particle structure,Transfer reaction |
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: | 11 Oct 2018 09:30 |
Last Modified: | 17 Oct 2024 08:39 |
Published Version: | https://doi.org/10.1016/j.physletb.2018.09.031 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1016/j.physletb.2018.09.031 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:137013 |
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