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Coulomb excitation of Rn 222

Spagnoletti, P. ; Butler, P. A. ; Gaffney, L. P. ; Abrahams, K. ; Bowry, M. ; Cederkäll, J. LU ; Chupp, T. ; De Angelis, G. ; De Witte, H. and Garrett, P. E. , et al. (2022) In Physical Review C 105(2).
Abstract

The nature of quadrupole and octupole collectivity in Rn222 was investigated by determining the electric-quadrupole (E2) and octupole (E3) matrix elements using subbarrier, multistep Coulomb excitation. The radioactive Rn222 beam, accelerated to 4.23 MeV/u, was provided by the HIE-ISOLDE facility at CERN. Data were collected in the Miniball γ-ray spectrometer following the bombardment of two targets, Sn120 and Ni60. Transition E2 matrix elements within the ground-state and octupole bands were measured up to 10ℏ and the results were consistent with a constant intrinsic electric-quadrupole moment, 518(11)efm2. The values of the intrinsic electric-octupole moment for the 0+→3- and 2+→5- transitions were found to be respectively... (More)

The nature of quadrupole and octupole collectivity in Rn222 was investigated by determining the electric-quadrupole (E2) and octupole (E3) matrix elements using subbarrier, multistep Coulomb excitation. The radioactive Rn222 beam, accelerated to 4.23 MeV/u, was provided by the HIE-ISOLDE facility at CERN. Data were collected in the Miniball γ-ray spectrometer following the bombardment of two targets, Sn120 and Ni60. Transition E2 matrix elements within the ground-state and octupole bands were measured up to 10ℏ and the results were consistent with a constant intrinsic electric-quadrupole moment, 518(11)efm2. The values of the intrinsic electric-octupole moment for the 0+→3- and 2+→5- transitions were found to be respectively 2360-210+300efm3 and 2300-500+300efm3 while a smaller value, 1200-900+500efm3, was found for the 2+→1- transition. In addition, four excited non-yrast states were identified in this work via γ-γ coincidences.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review C
volume
105
issue
2
article number
024323
publisher
American Physical Society
external identifiers
  • scopus:85126130522
ISSN
2469-9985
DOI
10.1103/PhysRevC.105.024323
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2022 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
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ea85ed8b-86f8-4123-afbb-8fb5726ebf13
date added to LUP
2022-03-23 08:09:36
date last changed
2022-04-23 23:15:08
@article{ea85ed8b-86f8-4123-afbb-8fb5726ebf13,
  abstract     = {{<p>The nature of quadrupole and octupole collectivity in Rn222 was investigated by determining the electric-quadrupole (E2) and octupole (E3) matrix elements using subbarrier, multistep Coulomb excitation. The radioactive Rn222 beam, accelerated to 4.23 MeV/u, was provided by the HIE-ISOLDE facility at CERN. Data were collected in the Miniball γ-ray spectrometer following the bombardment of two targets, Sn120 and Ni60. Transition E2 matrix elements within the ground-state and octupole bands were measured up to 10ℏ and the results were consistent with a constant intrinsic electric-quadrupole moment, 518(11)efm2. The values of the intrinsic electric-octupole moment for the 0+→3- and 2+→5- transitions were found to be respectively 2360-210+300efm3 and 2300-500+300efm3 while a smaller value, 1200-900+500efm3, was found for the 2+→1- transition. In addition, four excited non-yrast states were identified in this work via γ-γ coincidences. </p>}},
  author       = {{Spagnoletti, P. and Butler, P. A. and Gaffney, L. P. and Abrahams, K. and Bowry, M. and Cederkäll, J. and Chupp, T. and De Angelis, G. and De Witte, H. and Garrett, P. E. and Goldkuhle, A. and Henrich, C. and Illana, A. and Johnston, K. and Joss, D. T. and Keatings, J. M. and Kelly, N. A. and Komorowska, M. and Konki, J. and Kröll, T. and Singh, B. S.Nara and O'Donnell, D. and Ojala, J. and Page, R. D. and Raison, C. and Reiter, P. and Rosiak, D. and Rothe, S. and Scheck, M. and Seidlitz, M. and Shneidman, T. M. and Siebeck, B. and Sinclair, J. and Smith, J. F. and Stryjczyk, M. and Van Duppen, P. and Viñals, S. and Virtanen, V. and Wrzosek-Lipska, K. and Warr, N. and Zielińska, M.}},
  issn         = {{2469-9985}},
  language     = {{eng}},
  number       = {{2}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review C}},
  title        = {{Coulomb excitation of Rn 222}},
  url          = {{http://dx.doi.org/10.1103/PhysRevC.105.024323}},
  doi          = {{10.1103/PhysRevC.105.024323}},
  volume       = {{105}},
  year         = {{2022}},
}