Detailed study of the decay of 21Mg
Journal article, 2024
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.
Author
E. A.M. Jensen
Aarhus University
S. T. Nielsen
Aarhus University
A. Andreyev
University of York
M. Borge
CSIC - Instituto de Estructura de la Materia (IEM)
J. Cederkall
Lund University
L. M. Fraile
IPARCOS-UCM (Instituto de Física de Partículas y del Cosmos)
H. O. U. Fynbo
Aarhus University
L. J. Harkness-Brennan
University of Liverpool
Björn Jonson
Chalmers, Physics, Subatomic, High Energy and Plasma Physics
D. S. Judson
University of Liverpool
O. S. Kirsebom
Aarhus University
R. Lica
Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering
M. V. Lund
Aarhus University
M. Madurga
University of Tennessee
N. Marginean
Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering
C. Mihai
Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering
R. D. Page
University of Liverpool
A. Perea
CSIC - Instituto de Estructura de la Materia (IEM)
K. Riisager
Aarhus University
O. Tengblad
CSIC - Instituto de Estructura de la Materia (IEM)
European Physical Journal A
1434-6001 (ISSN) 1434-601X (eISSN)
Vol. 60 7 153Subject Categories
Subatomic Physics
DOI
10.1140/epja/s10050-024-01376-6