Abstract
The ground state of neutron-rich unbound Li was observed for the first time in a one-proton removal reaction from Be at a beam energy of 53.6 MeV/u. The Li ground state was reconstructed from Li and two neutrons giving a resonance energy of 120 keV. All events involving single- and double-neutron interactions in the Modular Neutron Array (MoNA) were analyzed, simulated, and fitted self-consistently. The three-body () correlations within Jacobi coordinates showed strong dineutron characteristics. The decay energy spectrum of the intermediate Li system () was described with an -wave scattering length of greater than fm, which is a smaller absolute value than reported in a previous measurement.
- Received 15 November 2012
DOI:https://doi.org/10.1103/PhysRevC.87.011304
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