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Título : Systematic investigation of the drip-line nuclei Li-11 and Be-14 and their unbound subsystems Li-10 and Be-13
Autor : Simon, H.; Meister, M.; Aumann, T.; García Borge, María José ; Chulkov, L. V.; Pramanik, U. Datta; Elze, Th. W.; Emling, H.; Forssen, C.; Geissel, H.; Hellstroem, M.; Jonson, B.; Kratz, Jx.; Kulessa, R.; Nilsson, T.; Nyman, G.; Richter, Achim W.; Riisager, K.; Scheidenberger, C.; Schrieder, G.; Tengblad, Olof ; Zhukov, M. V.
Palabras clave : Reaction Cross-Sections
N=8 Shell Closure
Halo Nuclei
Fragmentation Reactions
Momentum Distributions
Excited-States
Cluster Model
Energy-Levels
Ground-State
He-6
Fecha de publicación : 13-may-2007
Editor: Elsevier
Serie : Nuclear Physics A 791(3-4): 267–302 (2007)
Resumen: Fragmentation reactions in a carbon target with beams of Li-11 and Be-14 at relativistic energies have been studied in a kinematically complete experiment at the ALADIN-LAND setup at GSI. Excited states in Li-11 and Be-14 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 Be-14 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 Li-11 and Be-14 ground states. For Li-10 a low-lying virtual s-state, a p-state and evidence for a d-state could be extracted from the data, while the Be-12 + n system shows resonances with more complicated structure.
Descripción : 36 pages, 10 figures, 8 tables, 3 appendices.-- PACS nrs.: 27.20.+n; 24.70.+s.-- Printed version published Jul 15, 2007.
Versión del editor: http://dx.doi.org/10.1016/j.nuclphysa.2007.04.021
URI : http://hdl.handle.net/10261/4358
DOI: 10.1016/j.nuclphysa.2007.04.021
ISSN: 0375-9474
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