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Detailed study of the decay of 21Mg

Jensen, E. A.M. ; Nielsen, S. T. ; Andreyev, A. ; Borge, M. J.G. ; Cederkäll, J. LU ; Fraile, L. M. ; Fynbo, H. O.U. ; Harkness-Brennan, L. J. ; Jonson, B. and Judson, D. S. , et al. (2024) In European Physical Journal A 60(7).
Abstract

Beta-delayed proton and gamma emission in the decay of 21Mg has been measured at ISOLDE, CERN with the ISOLDE Decay Station (IDS) set-up. The existing decay scheme is updated, in particular what concerns proton transitions to excited states in 20Ne. Signatures of interference in several parts of the spectrum are used to settle spin and parity assignments to highly excited states in 21Na. The previously reported βpα branch is confirmed. A half-life of 120.5(4) ms is extracted for 21Mg. The revised decay scheme is employed to test mirror symmetry in the decay and to extract the beta strength distribution of 21Mg that is compared with theory.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
European Physical Journal A
volume
60
issue
7
article number
153
publisher
Springer
external identifiers
  • scopus:85199411148
ISSN
1434-6001
DOI
10.1140/epja/s10050-024-01376-6
language
English
LU publication?
yes
additional info
Publisher Copyright: © The Author(s) 2024.
id
046d600c-4108-4293-af24-9986f597ba96
date added to LUP
2024-08-24 15:28:24
date last changed
2025-04-04 15:21:12
@article{046d600c-4108-4293-af24-9986f597ba96,
  abstract     = {{<p>Beta-delayed proton and gamma emission in the decay of <sup>21</sup>Mg has been measured at ISOLDE, CERN with the ISOLDE Decay Station (IDS) set-up. The existing decay scheme is updated, in particular what concerns proton transitions to excited states in <sup>20</sup>Ne. Signatures of interference in several parts of the spectrum are used to settle spin and parity assignments to highly excited states in <sup>21</sup>Na. The previously reported βpα branch is confirmed. A half-life of 120.5(4) ms is extracted for <sup>21</sup>Mg. The revised decay scheme is employed to test mirror symmetry in the decay and to extract the beta strength distribution of <sup>21</sup>Mg that is compared with theory.</p>}},
  author       = {{Jensen, E. A.M. and Nielsen, S. T. and Andreyev, A. and Borge, M. J.G. and Cederkäll, J. and Fraile, L. M. and Fynbo, H. O.U. and Harkness-Brennan, L. J. and Jonson, B. and Judson, D. S. and Kirsebom, O. S. and Lică, R. and Madurga, M. and Marginean, N. and Mihai, C. and Page, R. D. and Perea, A. and Riisager, K. and Tengblad, O.}},
  issn         = {{1434-6001}},
  language     = {{eng}},
  number       = {{7}},
  publisher    = {{Springer}},
  series       = {{European Physical Journal A}},
  title        = {{Detailed study of the decay of <sup>21</sup>Mg}},
  url          = {{http://dx.doi.org/10.1140/epja/s10050-024-01376-6}},
  doi          = {{10.1140/epja/s10050-024-01376-6}},
  volume       = {{60}},
  year         = {{2024}},
}