PUBLICATION: Population of 13Be in a nucleon exchange reaction

Published in Physical Review C: The neutron-unbound nucleus Be 13 was populated with a nucleon exchange reaction from a 71 MeV/u secondary B 13 beam. The decay-energy spectrum was reconstructed using invariant mass spectroscopy based on Be 12 fragments in coincidence with neutrons. The data could be described with an s-wave resonance at E r= 0.73 (9) MeV with a width of Γ r= 1.98 (34) MeV and a d-wave resonance at E r= 2.56 (13) MeV with a width of Γ r= 2.29 (73) MeV. The observed spectral shape is consistent with previous one-proton removal reaction measurements from B 14.

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