Shape coexistence in the neutron-deficient lead region: A systematic study of lifetimes in the even-even <SUP>188-200</SUP>Hg with the GRIFFIN spectrometer at TRIUMF



Olaizola, B, Garnsworthy, AB, Ali, FA, Andreoiu, C, Ball, GC, Bernier, N, Bidaman, H, Bildstein, V, Bowry, M, Caballero-Folch, R
et al (show 13 more authors) (2019) Shape coexistence in the neutron-deficient lead region: A systematic study of lifetimes in the even-even <SUP>188-200</SUP>Hg with the GRIFFIN spectrometer at TRIUMF. PHYSICAL REVIEW C, 100 (2).

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Abstract

Lifetimes of 21+ and 41+ states as well as some negative-parity and nonyrast states in Hg188-200 were measured using γ-γ electronic fast timing techniques with the LaBr3(Ce) detector array of the GRIFFIN spectrometer. The excited states were populated in the ϵ/β+ decay of Jπ=7+/2-Tl188-200 produced at the TRIUMF-ISAC facility. The deduced B(E2) values are compared to different interacting boson model predictions. The precision achieved in this paper over previous ones allows for a meaningful comparison with the different theoretical models of these transitional Hg isotopes, which confirms the onset of state mixing in Hg190.

Item Type: Article
Depositing User: Symplectic Admin
Date Deposited: 05 Dec 2019 17:32
Last Modified: 08 Oct 2023 15:14
DOI: 10.1103/PhysRevC.100.024301
Open Access URL: https://arxiv.org/pdf/1907.12274.pdf
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3065047