Continuum effects and three-nucleon forces in neutron-rich oxygen   isotopes
  We employ interactions from chiral effective field theory and compute binding energies, excited states, and radii for isotopes of oxygen with the coupled-cluster method. Our calculation includes the effects of three-nucleon forces and of the particle continuum, both of which are important for the description of neutron-rich isotopes in the vicinity of the nucleus O-24. Our main results are the placement of the neutron drip-line at O-24, the assignment of spins, parities and resonance widths for several low-lying states of the drip-line nucleus, and an efficient approximation that incorporates the effects of three-body interactions. 
G. Hagen, M. Hjorth-Jensen, G. R. Jansen, R. Machleidt, and T.   Papenbrock
nucl-th nucl-ex