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Branching ratios in the β decays of N12 and B12

AuthorsHyldegaard, S.; Diget, C.Aa.; García Borge, María José ; Boutami, Rafik ; Dendooven, Peter; Eronen, T.; Fox, S.P.; Fraile, Luis M. ; Fulton, Brian R.; Fynbo, H.O.U.; Huikari, Jussi; Jeppesen, Henrik B.; Jokinen, Ari S.; Jonson, Björn; Kankainen, A.; Moore, I.; Nyman, Göran; Penttilä, H.; Peräjärvi, K.; Riisager, Karsten; Rinta-Antila, Sami; Tengblad, Olof ; Wang, Yimin; Wilhelmsen, Katarina; Äystö, Juha
Issue Date2009
PublisherAmerican Physical Society
CitationPhysical Review C - Nuclear Physics 80 (2009)
AbstractAbsolute branching ratios to unbound states in C12 populated in the β decays of N12 and B12 are reported. Clean sources of N12 and B12 were obtained using the isotope separation on-line (ISOL) method. The relative branching ratios to the different populated states were extracted using single-alpha as well as complete kinematics triple-alpha spectra. These two largely independent methods give consistent results. Absolute normalization is achieved via the precisely known absolute branching ratio to the bound 4.44 MeV state in C12. The extracted branching ratios to the unbound states are a factor of three more precise than previous measurements. Branching ratios in the decay of Na20 are also extracted and used to check the results. © 2009 The American Physical Society.
Identifiersdoi: 10.1103/PhysRevC.80.044304
issn: 0556-2813
Appears in Collections:(CFMAC-IEM) Artículos
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