Beta-delayed proton emission from 21Mg
Journal article, 2015
Beta-delayed proton emission from 21Mg has been measured at ISOLDE, CERN, with a detection setup consisting of two charged-particle telescopes surrounding the decay point. Altogether 27 βp branches were measured with center-of-mass energies between 0.4–7.2 MeV. Seven new βp branches were observed. Beta-delayed protons were used to determine the half-life of 21Mg as 118.6 ± 0.5 ms. From a line shape fit of the βp branches we extract the widths, spins, and parities of the resonances of 21Na. An improved interpretation of the decay scheme in accordance with the results obtained in reaction studies is presented.
Author
M. V. Lund
Aarhus University
M. J. G. Borge
CSIC - Instituto de Estructura de la Materia (IEM)
CERN
J. A. Briz
CSIC - Instituto de Estructura de la Materia (IEM)
J. Cederkäll
Lund University
H. O. U. Fynbo
Aarhus University
J. H. Jensen
Aarhus University
Björn Jonson
Chalmers, Fundamental Physics
K. L. Laursen
Aarhus University
Thomas Nilsson
Chalmers, Fundamental Physics
A. Perea
CSIC - Instituto de Estructura de la Materia (IEM)
V. Pesudo
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. 51 9 Art. no. 113- 113Subject Categories
Subatomic Physics
DOI
10.1140/epja/i2015-15113-1