Study of β-delayed charged particle emission of 11Li: Evidence of new decay channels
Journal article, 2008
The break-up of the 18.2 MeV state in 11Be was studied in a 11Li β-decay experiment. We report here on the study of the dominating breakup channels involving na6He or 3n2α in the final state, with special emphasis dedicated in this contribution to the three-particle channel. The two emitted charged particles were detected in coincidence using a highly segmented experimental set-up. The observed experimental energy-vs-energy scatter plot indicates a sequential breakup where nuclei of mass 4, alpha particles, and mass 7, 7He, are involved. A Monte-Carlo simulation of the sequential channel, 11Be* → α + 7He → nα6He was performed and compared to the experimental data and to a simulation of the direct break-up of the 18.2 MeV state nα6He by phase space energy distribution. The energy-versus-energy plot are explained by the sequential simulation but not by the phase space simulation.
Author
M. Madurga
CSIC - Instituto de Estructura de la Materia (IEM)
M. J. G. Borge
CSIC - Instituto de Estructura de la Materia (IEM)
J. C. Angelique
Normandie University
Ling Bao
Chalmers, Applied Physics, Subatomic Physics
U. Bergmann
CERN
A. ButÇŽ
Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering
Normandie University
J. Cederkäll
CERN
J. M. Daugas
Normandie University
C. Aa Diget
Aarhus University
L. M. Fraile
CERN
H. O. U. Fynbo
Aarhus University
H. B. Jeppesen
Aarhus University
Björn Jonson
Chalmers, Applied Physics, Subatomic Physics
E. Lienard
Normandie University
F. Marechal
Normandie University
M. Marques
Normandie University
V. Meot
Normandie University
F. Negoita
Normandie University
T. Nilsson
CERN
Göran Hugo Nyman
Chalmers, Applied Physics, Subatomic Physics
F. Perrot
Normandie University
K. Riisager
Aarhus University
O. Roig
Normandie University
O. Tengblad
CSIC - Instituto de Estructura de la Materia (IEM)
E. Tengborn
CERN
M. Turrion
CERN
Katarina Wilhelmsen Rolander
Chalmers, Applied Physics, Subatomic Physics
Journal of Physics: Conference Series
17426588 (ISSN) 17426596 (eISSN)
Vol. 111 1 012024Subject Categories
Physical Sciences
DOI
10.1088/1742-6596/111/1/012024