Abstract
The unbound nucleus has been investigated via the reaction of a 16.8 MeV radioactive ion beam on a target. The measurement of the outgoing through its well characterized two- decay permitted the energy of the system to be reconstructed. Through comparison with a complete Monte Carlo simulation incorporating -matrix lineshapes, the ground state was determined to lie 0.380(28) MeV above the neutron decay with a width of MeV. A neutron spectroscopic factor was extracted in agreement with the most recent calculations. Significant evidence was found for a broad resonance lying at 2.6(2) MeV above threshold with a MeV. These parameters are fully consistent with the properties of state reported by Wuosmaa et al. [Phys. Rev. C 72, 061301(R) (2005)]. Limits were also put on the presence of narrow resonances seen in earlier experiments.
3 More- Received 8 June 2016
DOI:https://doi.org/10.1103/PhysRevC.94.024619
©2016 American Physical Society