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Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/9810
Title: Halo structure of Be-14
Authors: Labiche, M.; Orr, N. A.; Marqués, F. M.; Angélique, J. C.; Axelsson, L.; Benoit, B.; Bergmann, U. C.; García Borge, María José; Catford, W. N.; Chappell, S. P. G.; Clarke, N. M.; Costa, G.; Curtis, N.; D’Arrigo, A.; Brennand, E. de Góes; Dorvaux, O.; Fazio, G.; Freer, M.; Fulton, B. R.; Giardina, G.; Grévy, S.; Guillemaud-Mueller, D.; Hanappe, F.; Heusch, B.; Jones, K. L.; Jonson, B.; Le Brun, C.; Leenhardt, S.; Lewitowicz, M.; López, M. J.; Markenroth, K.; Mueller, A. C.; Nilsson, T.; Ninane, A.; Nyman, G.; Oliveira, F. de; Piqueras, Inmaculada; Riisager, K.; Saint-Laurent, M. G.; Sarazin, F.; Singer, S. M.; Sorlin, O.; Stuttgé, L.
Keywords: Neutron-rich nuclei
Momentum distributions
Issue Date: 22-Jan-2001
Publisher: American Physical Society
Series/Report no.: Physical Review Letters 86: 600-603 (2001)
Abstract: The two-neutron halo nucleus Be-14 has been investigated in a kinematically complete measurement of the fragments (Be-12 and neutrons) produced in dissociation at 35 MeV/nucleon on C and Pb targets. Two-neutron removal cross sections, neutron angular distributions, and invariant mass spectra were measured, and the contributions from electromagnetic dissociation (EMD) were deduced. Comparison with three-body model calculations suggests that the halo wave function contains a large nu(2s(1/2))(2) admixture. The EMD invariant mass spectrum exhibited enhanced strength near threshold consistent with a nonresonant soft-dipole excitation.
Description: 4 pages, 3 figures.-- PACS nrs.: 27.20.+n, 24.30.Gd, 25.60.Dz, 25.60.Gc.
Publisher version (URL): http://dx.doi.org/10.1103/PhysRevLett.86.600
URI: http://hdl.handle.net/10261/9810
ISSN: 0031-9007
DOI: 10.1103/PhysRevLett.86.600
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