Population of 13Be in a Nucleon Exchange Reaction

B.R. Marks , P.A. DeYoung , J.K. Smith , T. Baumann , J. Brown , N. Frank , J. Hinnefeld , M. Hoffman

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M.D. Jones Z. Kohley A.N. Kuchera B. Luther A. Spyrou S. Stephenson C. Sullivan M. Thoennessen N. Viscariello S.J. Williams

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classification ⚛️ nucl-ex

keywords reactiongammaresonancewidthbeamcoincidenceconsistentd-wave

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

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Population of 13Be in a Nucleon Exchange Reaction

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