Identification of sub-μs isomeric states in the odd-odd nucleus<SUP> 178</SUP>Au



Gillespie, SA, Stott, A, Andreyev, AN, Cubiss, JG, Al Monthery, M, Barton, CJ, Antalic, S, Auranen, K, Badran, H, Cox, D
et al (show 23 more authors) (2021) Identification of sub-μs isomeric states in the odd-odd nucleus<SUP> 178</SUP>Au. PHYSICAL REVIEW C, 103 (4).

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Abstract

The neutron-deficient gold (Z=79) isotopes in the vicinity of the neutron midshell N=104 provide prolific examples of shape coexistence and isomerism at low excitation energy. They can be probed via a number of different experimental techniques. In this study, two new isomeric states with half-lives of 294(7) and 373(9) ns have been observed in the neutron-deficient odd-odd nuclide Au178 (N=99) in an experiment at the RITU gas-filled separator at JYFL, Jyväskylä. This result was achieved due to the use of a segmented planar germanium detector with a high efficiency at low energies. By applying the recoil-decay tagging technique, they were assigned to decay to two different long-lived α-decaying states in Au178.

Item Type: Article
Divisions: Faculty of Science and Engineering > School of Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 03 Sep 2021 15:37
Last Modified: 15 Dec 2023 09:01
DOI: 10.1103/PhysRevC.103.044307
Open Access URL: https://jyx.jyu.fi/bitstream/handle/123456789/7501...
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3135773