Butler, PA, Gaffney, LP 
ORCID: 0000-0002-2938-3696, Spagnoletti, P, Abrahams, K, Bowry, M, Cederkäll, J, de Angelis, G, De Witte, H, Garrett, PE, Goldkuhle, A et al (show 33 more authors)
(2020)
Evolution of Octupole Deformation in Radium Nuclei from Coulomb Excitation of Radioactive ^{222}Ra and ^{228}Ra Beams.
Physical review letters, 124 (4).
042503-.
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Abstract
There is sparse direct experimental evidence that atomic nuclei can exhibit stable "pear" shapes arising from strong octupole correlations. In order to investigate the nature of octupole collectivity in radium isotopes, electric octupole (E3) matrix elements have been determined for transitions in ^{222,228}Ra nuclei using the method of sub-barrier, multistep Coulomb excitation. Beams of the radioactive radium isotopes were provided by the HIE-ISOLDE facility at CERN. The observed pattern of E3 matrix elements for different nuclear transitions is explained by describing ^{222}Ra as pear shaped with stable octupole deformation, while ^{228}Ra behaves like an octupole vibrator.
| Item Type: | Article |
|---|---|
| Additional Information: | to be published in Physical Review Letters |
| Uncontrolled Keywords: | collective levels, electromagnetic transitions, nuclear structure and decays, nuclear tests of fundamental interactions |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 06 Feb 2020 09:01 |
| Last Modified: | 19 Jan 2023 00:04 |
| DOI: | 10.1103/physrevlett.124.042503 |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3073572 |
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