In-beam γ -ray spectroscopy studies of medium-spin states in the odd-odd nucleus Re 186

D. A. Matters; F. G. Kondev; N. Aoi; Y. Ayyad; A. P. Byrne; M. P. Carpenter; J. J. Carroll; C. J. Chiara; P. M. Davidson; G. D. Dracoulis; Y. D. Fang; C. R. Hoffman; R. O. Hughes; E. Ideguchi; R. V.F. Janssens; S. Kanaya; B. P. Kay; T. Kibédi; G. J. Lane; T. Lauritsen; J. W. McClory; P. Nieminen; S. Noji; A. Odahara; H. J. Ong; A. E. Stuchbery; D. T. Tran; H. Watanabe; A. N. Wilson; Y. Yamamoto; S. Zhu

doi:10.1103/PhysRevC.96.014318

In-beam γ -ray spectroscopy studies of medium-spin states in the odd-odd nucleus Re 186

D. A. Matters, F. G. Kondev, N. Aoi, Y. Ayyad, A. P. Byrne, M. P. Carpenter, J. J. Carroll, C. J. Chiara, P. M. Davidson, G. D. Dracoulis, Y. D. Fang, C. R. Hoffman, R. O. Hughes, E. Ideguchi, R. V.F. Janssens, S. Kanaya, B. P. Kay, T. Kibédi, G. J. Lane, T. LauritsenJ. W. McClory, P. Nieminen, S. Noji, A. Odahara, H. J. Ong, A. E. Stuchbery, D. T. Tran, H. Watanabe, A. N. Wilson, Y. Yamamoto, S. Zhu

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Abstract

Excited states in Re186 with spins up to J=12 were investigated in two separate experiments using W186(d,2n) reactions at beam energies of 12.5 and 14.5 MeV. Two- and threefold γ-ray coincidence data were collected using the CAESAR and CAGRA spectrometers, respectively, each composed of Compton-suppressed high-purity germanium detectors. Analysis of the data revealed rotational bands built on several two-quasiparticle intrinsic states, including a long-lived Kπ=(8+) isomer. Configuration assignments were supported by an analysis of in-band properties, such as gK-gR values. The excitation energies of the observed intrinsic states were compared with results from multi-quasiparticle blocking calculations, based on the Lipkin-Nogami pairing approach, that included contributions from the residual proton-neutron interactions.

Original language	English
Article number	014318
Journal	Physical Review C
Volume	96
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevC.96.014318
Publication status	Published - 27 Jul 2017

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Matters, D. A., Kondev, F. G., Aoi, N., Ayyad, Y., Byrne, A. P., Carpenter, M. P., Carroll, J. J., Chiara, C. J., Davidson, P. M., Dracoulis, G. D., Fang, Y. D., Hoffman, C. R., Hughes, R. O., Ideguchi, E., Janssens, R. V. F., Kanaya, S., Kay, B. P., Kibédi, T., Lane, G. J., ... Zhu, S. (2017). In-beam γ -ray spectroscopy studies of medium-spin states in the odd-odd nucleus Re 186. Physical Review C, 96(1), Article 014318. https://doi.org/10.1103/PhysRevC.96.014318

@article{953beae7c3084d3d9a854da25871048a,

title = "In-beam γ -ray spectroscopy studies of medium-spin states in the odd-odd nucleus Re 186",

abstract = "Excited states in Re186 with spins up to J=12 were investigated in two separate experiments using W186(d,2n) reactions at beam energies of 12.5 and 14.5 MeV. Two- and threefold γ-ray coincidence data were collected using the CAESAR and CAGRA spectrometers, respectively, each composed of Compton-suppressed high-purity germanium detectors. Analysis of the data revealed rotational bands built on several two-quasiparticle intrinsic states, including a long-lived Kπ=(8+) isomer. Configuration assignments were supported by an analysis of in-band properties, such as gK-gR values. The excitation energies of the observed intrinsic states were compared with results from multi-quasiparticle blocking calculations, based on the Lipkin-Nogami pairing approach, that included contributions from the residual proton-neutron interactions.",

author = "Matters, {D. A.} and Kondev, {F. G.} and N. Aoi and Y. Ayyad and Byrne, {A. P.} and Carpenter, {M. P.} and Carroll, {J. J.} and Chiara, {C. J.} and Davidson, {P. M.} and Dracoulis, {G. D.} and Fang, {Y. D.} and Hoffman, {C. R.} and Hughes, {R. O.} and E. Ideguchi and Janssens, {R. V.F.} and S. Kanaya and Kay, {B. P.} and T. Kib{\'e}di and Lane, {G. J.} and T. Lauritsen and McClory, {J. W.} and P. Nieminen and S. Noji and A. Odahara and Ong, {H. J.} and Stuchbery, {A. E.} and Tran, {D. T.} and H. Watanabe and Wilson, {A. N.} and Y. Yamamoto and S. Zhu",

note = "Publisher Copyright: {\textcopyright} 2017 American Physical Society.",

year = "2017",

month = jul,

day = "27",

doi = "10.1103/PhysRevC.96.014318",

language = "English",

volume = "96",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "1",

}

Matters, DA, Kondev, FG, Aoi, N, Ayyad, Y, Byrne, AP, Carpenter, MP, Carroll, JJ, Chiara, CJ, Davidson, PM, Dracoulis, GD, Fang, YD, Hoffman, CR, Hughes, RO, Ideguchi, E, Janssens, RVF, Kanaya, S, Kay, BP, Kibédi, T, Lane, GJ, Lauritsen, T, McClory, JW, Nieminen, P, Noji, S, Odahara, A, Ong, HJ, Stuchbery, AE, Tran, DT, Watanabe, H, Wilson, AN, Yamamoto, Y & Zhu, S 2017, 'In-beam γ -ray spectroscopy studies of medium-spin states in the odd-odd nucleus Re 186', Physical Review C, vol. 96, no. 1, 014318. https://doi.org/10.1103/PhysRevC.96.014318

TY - JOUR

T1 - In-beam γ -ray spectroscopy studies of medium-spin states in the odd-odd nucleus Re 186

AU - Matters, D. A.

AU - Kondev, F. G.

AU - Aoi, N.

AU - Ayyad, Y.

AU - Byrne, A. P.

AU - Carpenter, M. P.

AU - Carroll, J. J.

AU - Chiara, C. J.

AU - Davidson, P. M.

AU - Dracoulis, G. D.

AU - Fang, Y. D.

AU - Hoffman, C. R.

AU - Hughes, R. O.

AU - Ideguchi, E.

AU - Janssens, R. V.F.

AU - Kanaya, S.

AU - Kay, B. P.

AU - Kibédi, T.

AU - Lane, G. J.

AU - Lauritsen, T.

AU - McClory, J. W.

AU - Nieminen, P.

AU - Noji, S.

AU - Odahara, A.

AU - Ong, H. J.

AU - Stuchbery, A. E.

AU - Tran, D. T.

AU - Watanabe, H.

AU - Wilson, A. N.

AU - Yamamoto, Y.

AU - Zhu, S.

PY - 2017/7/27

Y1 - 2017/7/27

N2 - Excited states in Re186 with spins up to J=12 were investigated in two separate experiments using W186(d,2n) reactions at beam energies of 12.5 and 14.5 MeV. Two- and threefold γ-ray coincidence data were collected using the CAESAR and CAGRA spectrometers, respectively, each composed of Compton-suppressed high-purity germanium detectors. Analysis of the data revealed rotational bands built on several two-quasiparticle intrinsic states, including a long-lived Kπ=(8+) isomer. Configuration assignments were supported by an analysis of in-band properties, such as gK-gR values. The excitation energies of the observed intrinsic states were compared with results from multi-quasiparticle blocking calculations, based on the Lipkin-Nogami pairing approach, that included contributions from the residual proton-neutron interactions.

AB - Excited states in Re186 with spins up to J=12 were investigated in two separate experiments using W186(d,2n) reactions at beam energies of 12.5 and 14.5 MeV. Two- and threefold γ-ray coincidence data were collected using the CAESAR and CAGRA spectrometers, respectively, each composed of Compton-suppressed high-purity germanium detectors. Analysis of the data revealed rotational bands built on several two-quasiparticle intrinsic states, including a long-lived Kπ=(8+) isomer. Configuration assignments were supported by an analysis of in-band properties, such as gK-gR values. The excitation energies of the observed intrinsic states were compared with results from multi-quasiparticle blocking calculations, based on the Lipkin-Nogami pairing approach, that included contributions from the residual proton-neutron interactions.

UR - http://www.scopus.com/inward/record.url?scp=85027125954&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.96.014318

DO - 10.1103/PhysRevC.96.014318

M3 - Article

SN - 2469-9985

VL - 96

JO - Physical Review C

JF - Physical Review C

IS - 1

M1 - 014318

ER -

In-beam γ -ray spectroscopy studies of medium-spin states in the odd-odd nucleus Re 186

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