Shape coexistence in the neutron-deficient lead region: a systematic study of lifetimes in the even-even 188-200Hg with the GRIFFIN spectrometer at TRIUMF

B. Olaizola; A.B. Garnsworthy; F.A. Ali; C. Andreoiu; G.C. Ball; N. Bernier; H. Bidaman; V. Bildstein; M. Bowry; R. Caballero-Folch; I. Dillmann; G. Hackman; P.E. Garrett; B. Jigmeddorj; A.I. Kilic; A.D. Maclean; H.P. Patel; Y. Saito; J. Smallcombe; C.E. Svensson; J. Turko; K. Whitmore; T. Zidar

doi:10.1103/PhysRevC.100.024301

Shape coexistence in the neutron-deficient lead region: a systematic study of lifetimes in the even-even ^188-200Hg with the GRIFFIN spectrometer at TRIUMF

B. Olaizola^*, A.B. Garnsworthy, F.A. Ali, C. Andreoiu, G.C. Ball, N. Bernier, H. Bidaman, V. Bildstein, M. Bowry, R. Caballero-Folch, I. Dillmann, G. Hackman, P.E. Garrett, B. Jigmeddorj, A.I. Kilic, A.D. Maclean, H.P. Patel, Y. Saito, J. Smallcombe, C.E. SvenssonJ. Turko, K. Whitmore, T. Zidar

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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Abstract

Lifetimes of 2₁⁺ and 4₁⁺ states as well as some negative-parity and nonyrast states in ^188-200Hg 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 J^π= 7⁺/2^- ^188-200Tl 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 ¹⁹⁰Hg.

Original language	English
Article number	024301
Journal	Physical Review C
Volume	100
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevC.100.024301
Publication status	Published - 2 Aug 2019
Externally published	Yes

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2019 07 19 Olaizola et al Shape acceptedAccepted author manuscript, 1.03 MB

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Olaizola, B., Garnsworthy, A. B., Ali, F. A., Andreoiu, C., Ball, G. C., Bernier, N., Bidaman, H., Bildstein, V., Bowry, M., Caballero-Folch, R., Dillmann, I., Hackman, G., Garrett, P. E., Jigmeddorj, B., Kilic, A. I., Maclean, A. D., Patel, H. P., Saito, Y., Smallcombe, J., ... Zidar, T. (2019). Shape coexistence in the neutron-deficient lead region: a systematic study of lifetimes in the even-even ^188-200Hg with the GRIFFIN spectrometer at TRIUMF. Physical Review C, 100(2), Article 024301. https://doi.org/10.1103/PhysRevC.100.024301

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title = "Shape coexistence in the neutron-deficient lead region: a systematic study of lifetimes in the even-even 188-200Hg with the GRIFFIN spectrometer at TRIUMF",

abstract = "Lifetimes of 21+ and 41+ states as well as some negative-parity and nonyrast states in 188-200Hg 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- 188-200Tl 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 190Hg.",

author = "B. Olaizola and A.B. Garnsworthy and F.A. Ali and C. Andreoiu and G.C. Ball and N. Bernier and H. Bidaman and V. Bildstein and M. Bowry and R. Caballero-Folch and I. Dillmann and G. Hackman and P.E. Garrett and B. Jigmeddorj and A.I. Kilic and A.D. Maclean and H.P. Patel and Y. Saito and J. Smallcombe and C.E. Svensson and J. Turko and K. Whitmore and T. Zidar",

year = "2019",

month = aug,

day = "2",

doi = "10.1103/PhysRevC.100.024301",

language = "English",

volume = "100",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "2",

}

Olaizola, B, Garnsworthy, AB, Ali, FA, Andreoiu, C, Ball, GC, Bernier, N, Bidaman, H, Bildstein, V, Bowry, M, Caballero-Folch, R, Dillmann, I, Hackman, G, Garrett, PE, Jigmeddorj, B, Kilic, AI, Maclean, AD, Patel, HP, Saito, Y, Smallcombe, J, Svensson, CE, Turko, J, Whitmore, K & Zidar, T 2019, 'Shape coexistence in the neutron-deficient lead region: a systematic study of lifetimes in the even-even ^188-200Hg with the GRIFFIN spectrometer at TRIUMF', Physical Review C, vol. 100, no. 2, 024301. https://doi.org/10.1103/PhysRevC.100.024301

TY - JOUR

T1 - Shape coexistence in the neutron-deficient lead region

T2 - a systematic study of lifetimes in the even-even 188-200Hg with the GRIFFIN spectrometer at TRIUMF

AU - Olaizola, B.

AU - Garnsworthy, A.B.

AU - Ali, F.A.

AU - Andreoiu, C.

AU - Ball, G.C.

AU - Bernier, N.

AU - Bidaman, H.

AU - Bildstein, V.

AU - Bowry, M.

AU - Caballero-Folch, R.

AU - Dillmann, I.

AU - Hackman, G.

AU - Garrett, P.E.

AU - Jigmeddorj, B.

AU - Kilic, A.I.

AU - Maclean, A.D.

AU - Patel, H.P.

AU - Saito, Y.

AU - Smallcombe, J.

AU - Svensson, C.E.

AU - Turko, J.

AU - Whitmore, K.

AU - Zidar, T.

PY - 2019/8/2

Y1 - 2019/8/2

N2 - Lifetimes of 21+ and 41+ states as well as some negative-parity and nonyrast states in 188-200Hg 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- 188-200Tl 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 190Hg.

AB - Lifetimes of 21+ and 41+ states as well as some negative-parity and nonyrast states in 188-200Hg 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- 188-200Tl 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 190Hg.

U2 - 10.1103/PhysRevC.100.024301

DO - 10.1103/PhysRevC.100.024301

M3 - Article

SN - 2469-9985

VL - 100

JO - Physical Review C

JF - Physical Review C

IS - 2

M1 - 024301

ER -

Shape coexistence in the neutron-deficient lead region: a systematic study of lifetimes in the even-even 188-200Hg with the GRIFFIN spectrometer at TRIUMF

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Shape coexistence in the neutron-deficient lead region: a systematic study of lifetimes in the even-even ^188-200Hg with the GRIFFIN spectrometer at TRIUMF