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Be (βp), a quasi-free neutron decay?

AuthorsRiisager, Karsten; García Borge, María José ; Briz, José Antonio ; Carmona Gallardo, M. ; Gottberg, A. ; Tengblad, Olof ; Winkler, S.
KeywordsBeta decay
Halo nucleus
Issue Date4-Apr-2014
CitationPhysics Letters - Section B 732: 305-308 (2014)
AbstractWe have observed β−β−-delayed proton emission from the neutron-rich nucleus 11Be by analyzing a sample collected at the ISOLDE facility at CERN with accelerator mass spectrometry (AMS). With a branching ratio of (8.3±0.9)⋅10−6(8.3±0.9)⋅10−6 the strength of this decay mode, as measured by the BGTBGT-value, is unexpectedly high. The result is discussed within a simple single-particle model and could be interpreted as a quasi-free decay of the 11Be halo neutron into a single-proton state.
DescriptionRiisager, Karsten et al.
Publisher version (URL)http://dx.doi.org/10.1016/j.physletb.2014.03.062
Appears in Collections:(CFMAC-IEM) Artículos
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