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arXiv · 1202.2839

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

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

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.

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G. Hagen, M. Hjorth-Jensen, G. R. Jansen, R. Machleidt, T. Papenbrock. 2012-02-13. Continuum effects and three-nucleon forces in neutron-rich oxygen isotopes. https://doi.org/10.1103/physrevlett.108.242501

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