Balogh, M, Jajcisinova, E, Venhart, M, Herzan, A, Wood, JL, Joss, DT 
ORCID: 0000-0001-5763-8767, Ali, FA, Auranen, K, Banovska, S, Birova, M et al (show 42 more authors)
(2022)
New collective structures in Au-179 and their implications for the triaxial deformation of the Pt-178 core.
PHYSICAL REVIEW C, 106 (6).
064324-.
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Abstract
The extremely neutron-deficient isotope Au179 has been studied by a combination of in-beam γ-ray and isomeric-decay spectroscopy. For in-beam spectroscopy, the recoil-isomer tagging technique was employed, using the known 3/2-, T1/2=328 ns isomer. A new rotational band, associated with the unfavored signature band of the 1h9/2?2f7/2 proton-intruder configuration, was revealed. A previously unknown, high-spin isomeric state with an excitation energy of 1743(17) keV and T1/2=2.16(8)μs was discovered. Five decay paths were identified, some of them feeding previously unknown non-yrast excited states, associated with the 1i13/2 proton-intruder configuration. Calculations based on the particle-plus-triaxial-rotor model were performed to interpret the data. On the basis of these calculations, the new 1h9/2?2f7/2 rotational band is interpreted as due to triaxial deformation of the underlying configuration with β2≈0.26 and γ≈27?. Observed non-yrast states of the positive-parity 1i13/2 intruder configuration are interpreted as due to triaxial deformation with β2≈0.26 and γ≈20?.
| Item Type: | Article |
|---|---|
| Divisions: | Faculty of Science and Engineering > School of Physical Sciences |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 25 Jan 2023 08:08 |
| Last Modified: | 15 Mar 2024 00:43 |
| DOI: | 10.1103/PhysRevC.106.064324 |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3167850 |
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