Systematic investigation of the drip-line nuclei 11Li and 14Be and their unbound subsystems 10Li and 13Be

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Fragmentation reactions in a carbon target with beams of 11Li and 14Be at relativistic energies have been studied in a kinematically complete experiment at the ALADIN-LAND setup at GSI. Excited states in 11Li and 14Be were obtained from the data in the inelastic channel. The measured cross sections with the core nucleus in the final state show that in the 14Be case core polarization plays an important role. In the one-neutron knockout channels the measured angular correlations between fragment and neutron are asymmetric, which demonstrates the presence of states with different parities in the 11Li and 14Be ground states. For 10Li a low-lying virtual s-state, a p-state and evidence for a d-state could be extracted from the data, while the 12Be+n system shows resonances with more complicated structure.


  • H. Simon
  • M Meister
  • T Aumann
  • M J G Borge
  • L V Chulkov
  • U. Datta Pramanik
  • Th W Elze
  • H. Emling
  • C Forssén
  • H Geissel
  • B. Jonson
  • J. V. Kratz
  • R. Kulessa
  • Y. Leifels
  • G. Münzenberg
  • F. Nickel
  • T. Nilsson
  • G. Nyman
  • A Richter
  • K. Riisager
  • C. Scheidenberger
  • G Schrieder
  • O Tengblad
  • M V Zhukov
Externa organisationer
  • Chalmers University of Technology
  • University of Mainz
  • CSIC Instituto de Estructura de la Materia (IEM)
  • Russian Research Center 'Kurchatov Institute'
  • Saha Institute of Nuclear Physics
  • Goethe University
  • Jagellonian University
  • Aarhus University
  • GSI Helmholtz Centre for Heavy Ion Research
  • Technical University of Darmstadt
Sidor (från-till)267-302
Antal sidor36
TidskriftNuclear Physics A
Utgåva nummer3-4
StatusPublished - 2007 jul 15
Peer review utfördJa
Externt publiceradJa