Continuum Effects and Three-Nucleon Forces in Neutron-Rich Oxygen Isotopes

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

doi:10.1103/PhysRevLett.108.242501

Title: Continuum Effects and Three-Nucleon Forces in Neutron-Rich Oxygen Isotopes

Journal Article · Sun Jan 01 00:00:00 EST 2012 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.108.242501· OSTI ID:1093035

Hagen, Gaute ^[1]; Hjorth-Jensen, M. ^[2]; Jansen, G R ^[2]; Machleidt, R ^[3]; Papenbrock, T. ^[4]

ORNL
University of Oslo, Norway
University of Idaho
University of Tennessee (UTK) and Oak Ridge National Laboratory (ORNL)

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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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF)

Sponsoring Organization:: USDOE Office of Science (SC)

DOE Contract Number:: DE-AC05-00OR22725

OSTI ID:: 1093035

Journal Information:: Physical Review Letters, Vol. 108, Issue 24; ISSN 0031-9007

Country of Publication:: United States

Language:: English

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