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- Madurga, M., et al.
(author)
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Multiple particle break-up study of low excited states in Be-9: The ghost peak in the Be-8 excitation energy spectrum visited
- 2007
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In: European Physical Journal: Special Topics. - : Springer Science and Business Media LLC. - 1951-6401 .- 1951-6355. ; 150:1, s. 137-138
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Journal article (peer-reviewed)abstract
- The aim of this work is to find out the origin of the anomalous resonance in Be-8 seen in the reactions through excited states in Be-9. We have populated the Be-9 excited states by beta-decay of Li-9. Energy and direction of the two alpha particles has been detected and the neutron spectra reconstructed. In our work we identified the "anomalous resonance" in Be-8 observed in several reaction studies as coming from the decay of the 2.43 and 2.78 MeV states in Be-9. This anomalous resonance appears when the two detected alpha particles are assumed to form a resonance in Be-8. We argued that the main decaying channels for these two levels in Be-9 do not involve Be-8.
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