Evidence for the ground-state resonance of 26O
  Evidence for the ground state of the neutron-unbound nucleus 26O was observed for the first time in the single proton-knockout reaction from a 82 MeV/u 27F beam. Neutrons were measured in coincidence with 24O fragments. 26O was determined to be unbound by 150+50-150 keV from the observation of low-energy neutrons. This result agrees with recent shell model calculations based on microscopic two- and three-nucleon forces. 
E. Lunderberg, P.A. DeYoung, Z. Kohley, H. Attanayake, T. Baumann, D.   Bazin, G. Christian, D. Divaratne, S.M. Grimes, A. H...
nucl-ex