Lifetime of the Kπ=8- isomer in the neutron-rich nucleus Er174, and N=106 E1 systematics

G. D. Dracoulis; G. J. Lane; F. G. Kondev; H. Watanabe; D. Seweryniak; S. Zhu; M. P. Carpenter; C. J. Chiara; R. V.F. Janssens; T. Lauritsen; C. J. Lister; E. A. McCutchan; I. Stefanescu

doi:10.1103/PhysRevC.79.061303

Lifetime of the Kπ=8- isomer in the neutron-rich nucleus Er174, and N=106 E1 systematics

G. D. Dracoulis
, G. J. Lane
, F. G. Kondev
, H. Watanabe
, D. Seweryniak
, S. Zhu
, M. P. Carpenter
, C. J. Chiara
, R. V.F. Janssens
, T. Lauritsen
, C. J. Lister
, E. A. McCutchan
, I. Stefanescu

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

26 Citations (Scopus)

Abstract

Chopped-beam techniques and γ-ray spectroscopy with Gammasphere have been used to measure the lifetime of the 1112-keV 8- isomeric state in Er174. The value obtained of τ=5.8(4) s corresponds to a reduced hindrance of fν=98 for the 163-keV E1 transition to the 8+ state of the ground-state band, in good agreement with the systematics of the corresponding E1 strengths in the N=106 isotones. The K-mixing in the 8- states is calculated in the context of the particle-rotor model and used to extract the underlying reduced hindrances.

Original language	English
Article number	061303
Journal	Physical Review C - Nuclear Physics
Volume	79
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevC.79.061303
Publication status	Published - 29 Jun 2009

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Dracoulis, G. D., Lane, G. J., Kondev, F. G., Watanabe, H., Seweryniak, D., Zhu, S., Carpenter, M. P., Chiara, C. J., Janssens, R. V. F., Lauritsen, T., Lister, C. J., McCutchan, E. A., & Stefanescu, I. (2009). Lifetime of the Kπ=8- isomer in the neutron-rich nucleus Er174, and N=106 E1 systematics. Physical Review C - Nuclear Physics, 79(6), Article 061303. https://doi.org/10.1103/PhysRevC.79.061303

@article{c000a66edf884694a654af40ea010d52,

title = "Lifetime of the Kπ=8- isomer in the neutron-rich nucleus Er174, and N=106 E1 systematics",

abstract = "Chopped-beam techniques and γ-ray spectroscopy with Gammasphere have been used to measure the lifetime of the 1112-keV 8- isomeric state in Er174. The value obtained of τ=5.8(4) s corresponds to a reduced hindrance of fν=98 for the 163-keV E1 transition to the 8+ state of the ground-state band, in good agreement with the systematics of the corresponding E1 strengths in the N=106 isotones. The K-mixing in the 8- states is calculated in the context of the particle-rotor model and used to extract the underlying reduced hindrances.",

author = "Dracoulis, \{G. D.\} and Lane, \{G. J.\} and Kondev, \{F. G.\} and H. Watanabe and D. Seweryniak and S. Zhu and Carpenter, \{M. P.\} and Chiara, \{C. J.\} and Janssens, \{R. V.F.\} and T. Lauritsen and Lister, \{C. J.\} and McCutchan, \{E. A.\} and I. Stefanescu",

year = "2009",

month = jun,

day = "29",

doi = "10.1103/PhysRevC.79.061303",

language = "English",

volume = "79",

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publisher = "American Physical Society",

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Dracoulis, GD, Lane, GJ, Kondev, FG, Watanabe, H, Seweryniak, D, Zhu, S, Carpenter, MP, Chiara, CJ, Janssens, RVF, Lauritsen, T, Lister, CJ, McCutchan, EA & Stefanescu, I 2009, 'Lifetime of the Kπ=8- isomer in the neutron-rich nucleus Er174, and N=106 E1 systematics', Physical Review C - Nuclear Physics, vol. 79, no. 6, 061303. https://doi.org/10.1103/PhysRevC.79.061303

TY - JOUR

T1 - Lifetime of the Kπ=8- isomer in the neutron-rich nucleus Er174, and N=106 E1 systematics

AU - Dracoulis, G. D.

AU - Lane, G. J.

AU - Kondev, F. G.

AU - Watanabe, H.

AU - Seweryniak, D.

AU - Zhu, S.

AU - Carpenter, M. P.

AU - Chiara, C. J.

AU - Janssens, R. V.F.

AU - Lauritsen, T.

AU - Lister, C. J.

AU - McCutchan, E. A.

AU - Stefanescu, I.

PY - 2009/6/29

Y1 - 2009/6/29

N2 - Chopped-beam techniques and γ-ray spectroscopy with Gammasphere have been used to measure the lifetime of the 1112-keV 8- isomeric state in Er174. The value obtained of τ=5.8(4) s corresponds to a reduced hindrance of fν=98 for the 163-keV E1 transition to the 8+ state of the ground-state band, in good agreement with the systematics of the corresponding E1 strengths in the N=106 isotones. The K-mixing in the 8- states is calculated in the context of the particle-rotor model and used to extract the underlying reduced hindrances.

AB - Chopped-beam techniques and γ-ray spectroscopy with Gammasphere have been used to measure the lifetime of the 1112-keV 8- isomeric state in Er174. The value obtained of τ=5.8(4) s corresponds to a reduced hindrance of fν=98 for the 163-keV E1 transition to the 8+ state of the ground-state band, in good agreement with the systematics of the corresponding E1 strengths in the N=106 isotones. The K-mixing in the 8- states is calculated in the context of the particle-rotor model and used to extract the underlying reduced hindrances.

UR - https://www.scopus.com/pages/publications/67650488431

U2 - 10.1103/PhysRevC.79.061303

DO - 10.1103/PhysRevC.79.061303

M3 - Article

SN - 0556-2813

VL - 79

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 6

M1 - 061303

ER -

Lifetime of the Kπ=8- isomer in the neutron-rich nucleus Er174, and N=106 E1 systematics

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