Collective excitations in the transitional nuclei Re-163 and Re-165



Davis-Merry, TR, Joss, DT ORCID: 0000-0001-5763-8767, Page, RD, Simpson, J, Paul, ES, Ali, FA, Bianco, L, Carroll, RJ, Cederwall, B, Darby, IG
et al (show 29 more authors) (2015) Collective excitations in the transitional nuclei Re-163 and Re-165. PHYSICAL REVIEW C, 91 (3).

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Abstract

Excited states in the neutron-deficient nuclei 75163Re88 and 75165Re90 were populated in the 106Cd(60Ni,p2nγ) and 92Mo(78Kr, 3p2nγ) fusion-evaporation reactions at bombarding energies of 270 and 380 MeV, respectively. γ rays were detected at the target position using the JUROGAM spectrometer while recoiling ions were separated in-flight by the RITU gas-filled recoil separator and implanted in the GREAT spectrometer. The energy level schemes for Re163 and Re165 were identified using recoil-decay correlation techniques. At low spin, the yrast bands of these isotopes consist of signature partner bands based on a single πh11/2 quasiproton configuration. The bands display large energy splitting consistent with the soft triaxial shape typical of transitional nuclei above N=82. The configurations of the excited states are proposed within the framework of the cranked shell model.

Item Type: Article
Additional Information: Date: 2014 (completed)
Depositing User: Symplectic Admin
Date Deposited: 02 Aug 2016 15:43
Last Modified: 19 Jan 2023 07:32
DOI: 10.1103/PhysRevC.91.034319
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3002715