Identification of sub-μs isomeric states in the odd-odd nucleus 178Au
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 178Au (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 178Au.
Main Authors
Format
Articles
Research article
Published
2021
Series
Subjects
Publication in research information system
Publisher
American Physical Society (APS)
The permanent address of the publication
https://urn.fi/URN:NBN:fi:jyu-202104122329Use this for linking
Review status
Peer reviewed
ISSN
2469-9985
DOI
https://doi.org/10.1103/PhysRevC.103.044307
Language
English
Published in
Physical Review C
Citation
- Gillespie, S. A., Stott, A., Andreyev, A. N., Cubiss, J. G., Al Monthery, M., Barton, C. J., Antalic, S., Auranen, K., Badran, H., Cox, D., Grahn, T., Greenlees, P. T., Herzan, A., Higgins, E., Julin, R., Juutinen, S., Klimo, J., Konki, J., Leino, M., . . . Wearing, F. (2021). Identification of sub-μs isomeric states in the odd-odd nucleus 178Au. Physical Review C, 103(4), Article 044307. https://doi.org/10.1103/PhysRevC.103.044307
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