1202.2839 (G. Hagen et al.)

Continuum effects and three-nucleon forces in neutron-rich oxygen
isotopes    [PDF]

G. Hagen, M. Hjorth-Jensen, G. R. Jansen, R. Machleidt, T. Papenbrock

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 24O. Our
main results are the placement of the neutron drip-line at 24O, 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.

View original: http://arxiv.org/abs/1202.2839