Journal
PHYSICS LETTERS B
Volume 693, Issue 3, Pages 310-315Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2010.07.060
Keywords
Nuclear reaction Pb-208(He-6, He-6)(center dot); Pb-208(He-6, He-4); Halo nuclei; Continuum-Discretized Coupled-Channels; Coupled-Reaction-Channels calculations
Funding
- Spanish Ministerio de Ciencia e Innovacion [FPA2009-08848, FPA2009-07653]
- Local Government of Junta de Andalucia [P07-FQM-02894]
- Spanish Consolider-Ingenio [CSD2007-00042]
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The elastic and a-production channels for the He-6 + Pb-208 reaction are investigated at energies around the Coulomb barrier (E-lab = 14, 16, 18, 22, and 27 MeV). The effect of the two-neutron transfer channels on the elastic scattering has been studied within the Coupled-Reaction-Channels (CRC) method. We find that the explicit inclusion of these channels allows a simultaneous description of the elastic data and the inclusive alpha cross sections at backward angles. Three-body Continuum-Discretized Coupled-Channels (CDCC) calculations are found to reproduce the elastic data, but not the transfer/breakup data. The trivial local polarization potential (TLP) derived from the CRC and CDCC calculations are found to explain the features found in previous phenomenological optical model calculations for this system. (c) 2010 Elsevier B.V. All rights reserved.
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