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

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. and Fahlander, C. LU , et al. (2020) In Physical Review C 101(5).
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.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review C
volume
101
issue
5
article number
054314
publisher
American Physical Society
external identifiers
  • scopus:85085978846
ISSN
2469-9985
DOI
10.1103/PhysRevC.101.054314
language
English
LU publication?
yes
id
5e90870b-bd13-4763-a6cd-b2b6ec39e688
date added to LUP
2021-01-14 13:45:34
date last changed
2022-04-19 03:49:02
@article{5e90870b-bd13-4763-a6cd-b2b6ec39e688,
  abstract     = {{<p>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.</p>}},
  author       = {{Carroll, R. J. and Walker, P. M. and Lane, G. J. and Reed, M. W. and Akber, A. and Albers, H. M. and Carroll, J. J. and Cullen, D. M. and Dai, A. C. and Fahlander, C. and Gerathy, M. S.M. and Hota, S. S. and Lotay, G. and Kibédi, T. and Margerin, V. and Mitchell, A. J. and Palalani, N. and Palazzo, T. and Patel, Z. and Shearman, R. and Stuchbery, A. E. and Xu, F. R.}},
  issn         = {{2469-9985}},
  language     = {{eng}},
  number       = {{5}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review C}},
  title        = {{γ -ray spectroscopy of a four-quasiparticle isomer band in Re 174}},
  url          = {{http://dx.doi.org/10.1103/PhysRevC.101.054314}},
  doi          = {{10.1103/PhysRevC.101.054314}},
  volume       = {{101}},
  year         = {{2020}},
}