Document Type

Article

Publication Date

9-6-2013

Comments

©2013 American Physical Society The final publisher version of this article can be found at http://link.aps.org/doi/10.1103/PhysRevC.88.031303

Abstract

The neutron-unbound nucleus Be-15 was observed for the first time. It was populated using neutron transfer from a deuterated polyethylene target with a 59 MeV/u Be-14 beam. Neutrons were measured in coincidence with outgoing Be-14 particles and the reconstructed decay energy spectrum exhibits a resonance at 1.8(1) MeV. This corresponds to Be-15 being unbound by 0.45 MeV more then Be-16 thus significantly hindering the sequential two-neutron decay of Be-16 to Be-14 through this state.

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Physics Commons

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