Rich band structure and multiple long-lived isomers in the odd-odd Cs118 nucleus

Zheng, KK, Petrache, CM, Zhang, ZH, Astier, A, Lv, BF, Greenlees, PT, Grahn, T, Julin, R, Juutinen, S, Luoma, M
et al (show 25 more authors) (2021) Rich band structure and multiple long-lived isomers in the odd-odd Cs118 nucleus. Physical Review C, 104 (4). 044325-.

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One of the largest sets of collective excitations built on two-quasiparticle configurations in odd-odd nuclei of the proton-rich mass region is reported in . Several new rotational bands and long-lived isomers have been identified. The bandhead of the band is a short-lived isomer with a half-life in the nanosecond range, while the state below it is a long-lived isomer with a half-life of . Two other long-lived isomers have been identified: a 66-keV transition detected at the MARA focal plane depopulates one of them, indicating a half-life in the microsecond range, while no depopulating transitions have been identified for the other, indicating a much longer half-life. Extensive particle number conserving cranked shell model calculations and alignment analysis have been employed to investigate the rich band structure of , which exhibits one of the most complete sets of two-quasiparticle configurations in nuclei close to the proton drip line.

Item Type: Article
Divisions: Faculty of Science and Engineering > School of Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 28 Oct 2021 10:14
Last Modified: 15 Mar 2024 00:43
DOI: 10.1103/physrevc.104.044325
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