γ -ray spectroscopy of a four-quasiparticle isomer band in Re 174

R. J. Carroll; P. M. Walker; G. J. Lane; M. W. Reed; A. Akber; H. M. Albers; J. J. Carroll; D. M. Cullen; A. C. Dai; C. Fahlander; M. S.M. Gerathy; S. S. Hota; G. Lotay; T. Kibédi; V. Margerin; A. J. Mitchell; N. Palalani; T. Palazzo; Z. Patel; R. Shearman; A. E. Stuchbery; F. R. Xu

doi:10.1103/PhysRevC.101.054314

γ -ray spectroscopy of a four-quasiparticle isomer band in Re 174

R. J. Carroll, P. M. Walker, G. J. Lane, M. W. Reed, A. Akber, H. M. Albers, J. J. Carroll, D. M. Cullen, A. C. Dai, C. Fahlander, M. S.M. Gerathy, S. S. Hota, G. Lotay, T. Kibédi, V. Margerin, A. J. Mitchell, N. Palalani, T. Palazzo, Z. Patel, R. ShearmanA. E. Stuchbery, F. R. Xu

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

Abstract

Excited states in Re174 have been populated in fusion-evaporation reactions at the Australian National University, and γ-ray spectroscopy has been used to determine the level structure and to deduce the underlying nucleon configurations. The half-life of the bandhead of the Kπ=8- band has been measured to be 2.7(4) ns. A band built on an isomeric state of spin-parity (14-) and a half-life of 53(5) ns has been observed here for the first time, and has been determined to have a four-quasiparticle structure. Contrasting reduced-hindrance values for its decay are discussed in terms of deformation and configuration changes, as indicated by configuration-constrained potential energy surface calculations.

Original language	English
Article number	054314
Journal	Physical Review C
Volume	101
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevC.101.054314
Publication status	Published - May 2020

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Carroll, R. J., Walker, P. M., Lane, G. J., Reed, M. W., Akber, A., Albers, H. M., Carroll, J. J., Cullen, D. M., Dai, A. C., Fahlander, C., Gerathy, M. S. M., Hota, S. S., Lotay, G., Kibédi, T., Margerin, V., Mitchell, A. J., Palalani, N., Palazzo, T., Patel, Z., ... Xu, F. R. (2020). γ -ray spectroscopy of a four-quasiparticle isomer band in Re 174. Physical Review C, 101(5), Article 054314. https://doi.org/10.1103/PhysRevC.101.054314

@article{31ecb613398a4ae8926f7347df0ce9f7,

title = "γ -ray spectroscopy of a four-quasiparticle isomer band in Re 174",

abstract = "Excited states in Re174 have been populated in fusion-evaporation reactions at the Australian National University, and γ-ray spectroscopy has been used to determine the level structure and to deduce the underlying nucleon configurations. The half-life of the bandhead of the Kπ=8- band has been measured to be 2.7(4) ns. A band built on an isomeric state of spin-parity (14-) and a half-life of 53(5) ns has been observed here for the first time, and has been determined to have a four-quasiparticle structure. Contrasting reduced-hindrance values for its decay are discussed in terms of deformation and configuration changes, as indicated by configuration-constrained potential energy surface calculations.",

author = "Carroll, {R. J.} and Walker, {P. M.} and Lane, {G. J.} and Reed, {M. W.} and A. Akber and Albers, {H. M.} and Carroll, {J. J.} and Cullen, {D. M.} and Dai, {A. C.} and C. Fahlander and Gerathy, {M. S.M.} and Hota, {S. S.} and G. Lotay and T. Kib{\'e}di and V. Margerin and Mitchell, {A. J.} and N. Palalani and T. Palazzo and Z. Patel and R. Shearman and Stuchbery, {A. E.} and Xu, {F. R.}",

note = "Publisher Copyright: {\textcopyright} 2020 American Physical Society.",

year = "2020",

month = may,

doi = "10.1103/PhysRevC.101.054314",

language = "English",

volume = "101",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "5",

}

Carroll, RJ, Walker, PM, Lane, GJ, Reed, MW, Akber, A, Albers, HM, Carroll, JJ, Cullen, DM, Dai, AC, Fahlander, C, Gerathy, MSM, Hota, SS, Lotay, G, Kibédi, T, Margerin, V, Mitchell, AJ, Palalani, N, Palazzo, T, Patel, Z, Shearman, R, Stuchbery, AE & Xu, FR 2020, 'γ -ray spectroscopy of a four-quasiparticle isomer band in Re 174', Physical Review C, vol. 101, no. 5, 054314. https://doi.org/10.1103/PhysRevC.101.054314

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T1 - γ -ray spectroscopy of a four-quasiparticle isomer band in Re 174

AU - Carroll, R. J.

AU - Walker, P. M.

AU - Lane, G. J.

AU - Reed, M. W.

AU - Akber, A.

AU - Albers, H. M.

AU - Carroll, J. J.

AU - Cullen, D. M.

AU - Dai, A. C.

AU - Fahlander, C.

AU - Gerathy, M. S.M.

AU - Hota, S. S.

AU - Lotay, G.

AU - Kibédi, T.

AU - Margerin, V.

AU - Mitchell, A. J.

AU - Palalani, N.

AU - Palazzo, T.

AU - Patel, Z.

AU - Shearman, R.

AU - Stuchbery, A. E.

AU - Xu, F. R.

PY - 2020/5

Y1 - 2020/5

N2 - Excited states in Re174 have been populated in fusion-evaporation reactions at the Australian National University, and γ-ray spectroscopy has been used to determine the level structure and to deduce the underlying nucleon configurations. The half-life of the bandhead of the Kπ=8- band has been measured to be 2.7(4) ns. A band built on an isomeric state of spin-parity (14-) and a half-life of 53(5) ns has been observed here for the first time, and has been determined to have a four-quasiparticle structure. Contrasting reduced-hindrance values for its decay are discussed in terms of deformation and configuration changes, as indicated by configuration-constrained potential energy surface calculations.

AB - Excited states in Re174 have been populated in fusion-evaporation reactions at the Australian National University, and γ-ray spectroscopy has been used to determine the level structure and to deduce the underlying nucleon configurations. The half-life of the bandhead of the Kπ=8- band has been measured to be 2.7(4) ns. A band built on an isomeric state of spin-parity (14-) and a half-life of 53(5) ns has been observed here for the first time, and has been determined to have a four-quasiparticle structure. Contrasting reduced-hindrance values for its decay are discussed in terms of deformation and configuration changes, as indicated by configuration-constrained potential energy surface calculations.

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DO - 10.1103/PhysRevC.101.054314

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VL - 101

JO - Physical Review C

JF - Physical Review C

IS - 5

M1 - 054314

ER -

γ -ray spectroscopy of a four-quasiparticle isomer band in Re 174

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