Structure of three-quasiparticle isomers in Ho169 and Tm171

G. D. Dracoulis; G. J. Lane; R. O. Hughes; 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; P. Chowdhury

doi:10.1103/PhysRevC.82.034317

Structure of three-quasiparticle isomers in Ho169 and Tm171

G. D. Dracoulis, G. J. Lane, R. O. Hughes, 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, P. Chowdhury

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Abstract

A three-quasiparticle isomer with τ=170(8) μs and Kπ= (19/2 ⁺) has been identified in the neutron-rich isotope Ho169. The isomer decays with K-forbidden transitions to members of a band associated with the 7/2^-[523] proton configuration, whose structure is characterized through analysis of the in-band γ-ray branching ratios. In the isotone Tm171, the rotational band based on the known 19/2⁺, three-quasiparticle isomer has also been observed. Alternative one-proton two-neutron configurations for the isomer in Ho169 are discussed in terms of multiquasiparticle calculations and through a comparison with the structures observed in Tm171.

Original language	English
Article number	034317
Journal	Physical Review C - Nuclear Physics
Volume	82
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevC.82.034317
Publication status	Published - 17 Sept 2010

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Dracoulis, G. D., Lane, G. J., Hughes, R. O., 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., & Chowdhury, P. (2010). Structure of three-quasiparticle isomers in Ho169 and Tm171. Physical Review C - Nuclear Physics, 82(3), Article 034317. https://doi.org/10.1103/PhysRevC.82.034317

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title = "Structure of three-quasiparticle isomers in Ho169 and Tm171",

abstract = "A three-quasiparticle isomer with τ=170(8) μs and Kπ= (19/2 +) has been identified in the neutron-rich isotope Ho169. The isomer decays with K-forbidden transitions to members of a band associated with the 7/2-[523] proton configuration, whose structure is characterized through analysis of the in-band γ-ray branching ratios. In the isotone Tm171, the rotational band based on the known 19/2+, three-quasiparticle isomer has also been observed. Alternative one-proton two-neutron configurations for the isomer in Ho169 are discussed in terms of multiquasiparticle calculations and through a comparison with the structures observed in Tm171.",

author = "Dracoulis, {G. D.} and Lane, {G. J.} and Hughes, {R. O.} 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 and P. Chowdhury",

year = "2010",

month = sep,

day = "17",

doi = "10.1103/PhysRevC.82.034317",

language = "English",

volume = "82",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

publisher = "American Physical Society",

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TY - JOUR

T1 - Structure of three-quasiparticle isomers in Ho169 and Tm171

AU - Dracoulis, G. D.

AU - Lane, G. J.

AU - Hughes, R. O.

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.

AU - Chowdhury, P.

PY - 2010/9/17

Y1 - 2010/9/17

N2 - A three-quasiparticle isomer with τ=170(8) μs and Kπ= (19/2 +) has been identified in the neutron-rich isotope Ho169. The isomer decays with K-forbidden transitions to members of a band associated with the 7/2-[523] proton configuration, whose structure is characterized through analysis of the in-band γ-ray branching ratios. In the isotone Tm171, the rotational band based on the known 19/2+, three-quasiparticle isomer has also been observed. Alternative one-proton two-neutron configurations for the isomer in Ho169 are discussed in terms of multiquasiparticle calculations and through a comparison with the structures observed in Tm171.

AB - A three-quasiparticle isomer with τ=170(8) μs and Kπ= (19/2 +) has been identified in the neutron-rich isotope Ho169. The isomer decays with K-forbidden transitions to members of a band associated with the 7/2-[523] proton configuration, whose structure is characterized through analysis of the in-band γ-ray branching ratios. In the isotone Tm171, the rotational band based on the known 19/2+, three-quasiparticle isomer has also been observed. Alternative one-proton two-neutron configurations for the isomer in Ho169 are discussed in terms of multiquasiparticle calculations and through a comparison with the structures observed in Tm171.

UR - http://www.scopus.com/inward/record.url?scp=77957316910&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.82.034317

DO - 10.1103/PhysRevC.82.034317

M3 - Article

SN - 0556-2813

VL - 82

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 3

M1 - 034317

ER -

Structure of three-quasiparticle isomers in Ho169 and Tm171

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