Journal
NUCLEAR PHYSICS A
Volume 810, Issue -, Pages 1-12Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nuclphysa.2008.07.008
Keywords
radioactivity Li-11(beta(-)); measured beta-delayed charged-particle spectra; Be-11 deduced subsequent break-up decay channels
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Funding
- Spanish CICYT [FPA2002-04181C04-02, FPA2005-02379]
- MEC Consolider project [CSD2007-00042]
- European Union Sixth Framework [506065]
- Swedish Knut and Alice Wallenberg Foundation
- Spanish MEC [FPU AP-2004-0002]
- Knut and Alice Wallenberg Foundation
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The beta-delayed charged particle emission from Li-11 has been studied with emphasis on the three-body n alpha He-6 and five-body 2 alpha 3n channels from the 10.59 and 18.15 MeV states in Be-11. Monte Carlo simulations using an R-matrix formalism lead to the conclusion that the A He resonance states play a significant role in the break-up of these states. The results exclude an earlier assumption of a phase-space description of the break-up process of the 18.15 MeV state. Evidence for extra sequential decay paths is found for both states. (C) 2008 Elsevier B.V. All rights reserved.
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