Study of β-delayed charged particle emission of 11Li: Evidence of new decay channels
Artikel i vetenskaplig tidskrift, 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.
Författare
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
Université de Caen Normandie
Ling Bao
Chalmers, Teknisk fysik, Subatomär fysik
U. Bergmann
Organisation européenne pour la recherche nucléaire (CERN)
A. ButÇŽ
Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering
Université de Caen Normandie
J. Cederkäll
Organisation européenne pour la recherche nucléaire (CERN)
J. M. Daugas
Université de Caen Normandie
C. Aa Diget
Aarhus Universitet
L. M. Fraile
Organisation européenne pour la recherche nucléaire (CERN)
H. O. U. Fynbo
Aarhus Universitet
H. B. Jeppesen
Aarhus Universitet
Björn Jonson
Chalmers, Teknisk fysik, Subatomär fysik
E. Lienard
Université de Caen Normandie
F. Marechal
Université de Caen Normandie
M. Marques
Université de Caen Normandie
V. Meot
Université de Caen Normandie
F. Negoita
Université de Caen Normandie
T. Nilsson
Organisation européenne pour la recherche nucléaire (CERN)
Göran Hugo Nyman
Chalmers, Teknisk fysik, Subatomär fysik
F. Perrot
Université de Caen Normandie
K. Riisager
Aarhus Universitet
O. Roig
Université de Caen Normandie
O. Tengblad
CSIC - Instituto de Estructura de la Materia (IEM)
E. Tengborn
Organisation européenne pour la recherche nucléaire (CERN)
M. Turrion
Organisation européenne pour la recherche nucléaire (CERN)
Katarina Wilhelmsen Rolander
Chalmers, Teknisk fysik, Subatomär fysik
Journal of Physics: Conference Series
17426588 (ISSN) 17426596 (eISSN)
Vol. 111 1Ämneskategorier
Fysik
DOI
10.1088/1742-6596/111/1/012024