New collective structures in Au 179 and their implications for the triaxial deformation of the Pt 178 core
(2022) In Physical Review C 106(6).- 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... (More)
- 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?. © 2022 American Physical Society. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/20867696-2d55-4033-8d76-2eaa4157b6c7
- author
- Balogh, M. ; Cox, D.M. LU and Wearing, F.P.
- author collaboration
- organization
- publishing date
- 2022
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review C
- volume
- 106
- issue
- 6
- article number
- 064324
- publisher
- American Physical Society
- external identifiers
-
- scopus:85146123237
- ISSN
- 2469-9985
- DOI
- 10.1103/PhysRevC.106.064324
- language
- English
- LU publication?
- yes
- id
- 20867696-2d55-4033-8d76-2eaa4157b6c7
- date added to LUP
- 2023-02-16 08:41:27
- date last changed
- 2023-02-16 08:46:56
@article{20867696-2d55-4033-8d76-2eaa4157b6c7,
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?. © 2022 American Physical Society.}},
author = {{Balogh, M. and Cox, D.M. and Wearing, F.P.}},
issn = {{2469-9985}},
language = {{eng}},
number = {{6}},
publisher = {{American Physical Society}},
series = {{Physical Review C}},
title = {{New collective structures in Au 179 and their implications for the triaxial deformation of the Pt 178 core}},
url = {{http://dx.doi.org/10.1103/PhysRevC.106.064324}},
doi = {{10.1103/PhysRevC.106.064324}},
volume = {{106}},
year = {{2022}},
}