Clément, E., Zielińska, M., Görgen, A. et al. (48 more authors) (2016) Spectroscopic Quadrupole Moments in Sr 96,98:Evidence for Shape Coexistence in Neutron-Rich Strontium Isotopes at N=60. Physical Review Letters. 022701. ISSN 1079-7114
Abstract
Neutron-rich Sr96,98 isotopes have been investigated by safe Coulomb excitation of radioactive beams at the REX-ISOLDE facility. Reduced transition probabilities and spectroscopic quadrupole moments have been extracted from the differential Coulomb excitation cross sections. These results allow, for the first time, the drawing of definite conclusions about the shape coexistence of highly deformed prolate and spherical configurations. In particular, a very small mixing between the coexisting states is observed, contrary to other mass regions where strong mixing is present. Experimental results have been compared to beyond-mean-field calculations using the Gogny D1S interaction in a five-dimensional collective Hamiltonian formalism, which reproduce the shape change at N=60.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Dates: |
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Institution: | The University of York |
Academic Units: | The University of York |
Depositing User: | Pure (York) |
Date Deposited: | 31 Mar 2016 11:16 |
Last Modified: | 16 Oct 2024 12:52 |
Published Version: | https://doi.org/10.1103/PhysRevLett.116.022701 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1103/PhysRevLett.116.022701 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:97517 |