Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Spectroscopy along flerovium decay chains. III. Details on experiment, analysis, 282Cn, and spontaneous fission branches

Såmark-Roth, A. LU ; Cox, D. M. LU ; Rudolph, D. LU orcid ; Sarmiento, L. G. LU orcid ; Albertsson, M. LU ; Carlsson, B. G. LU ; Egido, J. L. ; Golubev, P. LU ; Heery, J. and Yakushev, A. , et al. (2023) In Physical Review C 107(2).
Abstract
Flerovium isotopes (element Z = 114) were produced in the fusion-evaporation reactions 48Ca+242,244Pu and studied with an upgraded TASISpec decay station placed in the focal plane of the gas-filled separator TASCA at the GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt, Germany. Twenty-nine flerovium decay chains were identified by means of correlated implantation, α decay, and spontaneous fission events. Data analysis aspects and statistical assessments, primarily based on measured rates of various events, which laid the foundation for the comprehensive spectroscopic information on the flerovium decay chains, are presented in detail. Various decay scenarios of an excited state observed in... (More)
Flerovium isotopes (element Z = 114) were produced in the fusion-evaporation reactions 48Ca+242,244Pu and studied with an upgraded TASISpec decay station placed in the focal plane of the gas-filled separator TASCA at the GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt, Germany. Twenty-nine flerovium decay chains were identified by means of correlated implantation, α decay, and spontaneous fission events. Data analysis aspects and statistical assessments, primarily based on measured rates of various events, which laid the foundation for the comprehensive spectroscopic information on the flerovium decay chains, are presented in detail. Various decay scenarios of an excited state observed in 282Cn are examined in depth with the help of GEANT4 simulations and assessed by predictions of beyond mean-field calculations including triaxial shape degrees of freedom. Previous, revised, and newly derived fission probabilities of even-even superheavy nuclei are compared with various theoretical predictions. (Less)
Please use this url to cite or link to this publication:
author
; ; ; ; ; ; ; ; and , et al. (More)
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; and (Less)
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Superheavy elements, Nuclear spectroscopy, Alpha decay, Spontaneous fission, E0 decay, Mean field theory
in
Physical Review C
volume
107
issue
2
article number
024301
pages
12 pages
publisher
American Physical Society
external identifiers
  • scopus:85149707579
ISSN
2469-9985
DOI
10.1103/PhysRevC.107.024301
project
Characterization of New Superheavy Elements
Nuclear Structure at the Limits: Isotope-selective Spectroscopy
Spectroscopy along Decay Chains of Element 114, Flerovium
language
English
LU publication?
yes
id
7bdb9e8a-9ff8-49fd-9ecb-8126a22b3154
date added to LUP
2023-02-07 05:13:55
date last changed
2025-01-12 03:13:18
@article{7bdb9e8a-9ff8-49fd-9ecb-8126a22b3154,
  abstract     = {{Flerovium isotopes (element <i>Z</i> = 114) were produced in the fusion-evaporation reactions <sup>48</sup>Ca+<sup>242,244</sup>Pu and studied with an upgraded TASISpec decay station placed in the focal plane of the gas-filled separator TASCA at the GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt, Germany. Twenty-nine flerovium decay chains were identified by means of correlated implantation, α decay, and spontaneous fission events. Data analysis aspects and statistical assessments, primarily based on measured rates of various events, which laid the foundation for the comprehensive spectroscopic information on the flerovium decay chains, are presented in detail. Various decay scenarios of an excited state observed in <sup>282</sup>Cn are examined in depth with the help of GEANT4 simulations and assessed by predictions of beyond mean-field calculations including triaxial shape degrees of freedom. Previous, revised, and newly derived fission probabilities of even-even superheavy nuclei are compared with various theoretical predictions.}},
  author       = {{Såmark-Roth, A. and Cox, D. M. and Rudolph, D. and Sarmiento, L. G. and Albertsson, M. and Carlsson, B. G. and Egido, J. L. and Golubev, P. and Heery, J. and Yakushev, A. and Åberg, S. and Albers, H. M. and Block, M. and Brand, H. and Calverley, T. and Cantemir, R. and Clark, R. M. and Düllmann, Ch. E. and Eberth, J. and Fahlander, C. and Forsberg, U. and Gates, J. M. and Giacoppo, F. and Götz, M. and Götz, S. and Herzberg, R.-D. and Hrabar, Y. and Jäger, E. and Judson, D. and Khuyagbaatar, J. and Kindler, B. and Kojouharov, I. and Kratz, J. V. and Krier, J. and Kurz, N. and Lens, L. and Ljungberg, J. and Lommel, B. and Louko, J. and Meyer, C.-C. and Mistry, A. and Mokry, C. and Papadakis, P. and Parr, E. and Pore, J. L. and Ragnarsson, I. and Runke, J. and Schädel, M. and Schaffner, H. and Schausten, B. and Shaughnessy, D. A. and Thörle-Pospiech, P. and Trautmann, N. and Uusitalo, J.}},
  issn         = {{2469-9985}},
  keywords     = {{Superheavy elements; Nuclear spectroscopy; Alpha decay; Spontaneous fission; E0 decay; Mean field theory}},
  language     = {{eng}},
  month        = {{02}},
  number       = {{2}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review C}},
  title        = {{Spectroscopy along flerovium decay chains. III. Details on experiment, analysis, <sup>282</sup>Cn, and spontaneous fission branches}},
  url          = {{https://lup.lub.lu.se/search/files/136899316/PhysRevC.107.024301.pdf}},
  doi          = {{10.1103/PhysRevC.107.024301}},
  volume       = {{107}},
  year         = {{2023}},
}