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Joakim

Joakim Cederkäll

Professor

Joakim

Detailed study of the decay of 21Mg

Author

  • E. A.M. Jensen
  • S. T. Nielsen
  • A. Andreyev
  • M. J.G. Borge
  • J. Cederkäll
  • L. M. Fraile
  • H. O.U. Fynbo
  • L. J. Harkness-Brennan
  • B. Jonson
  • D. S. Judson
  • O. S. Kirsebom
  • R. Lică
  • M. Madurga
  • N. Marginean
  • C. Mihai
  • R. D. Page
  • A. Perea
  • K. Riisager
  • O. Tengblad

Summary, in English

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.

Department/s

  • Particle and nuclear physics

Publishing year

2024-07

Language

English

Publication/Series

European Physical Journal A

Volume

60

Issue

7

Document type

Journal article

Publisher

Springer

Topic

  • Subatomic Physics

Status

Published

ISBN/ISSN/Other

  • ISSN: 1434-6001