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

Details Continuum effects and three-nucleon forces in neutron-rich oxygen isotopes Continuum effects and three-nucleon forces in neutron-rich oxygen isotopes

2012-02-13

arxiv.org/abs/1202.2839v1

Physics

Nuclear Physics

Nuclear Theory

4 pages, 3 figures

Scientific paper

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.

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