Journal
PHYSICS LETTERS B
Volume 736, Issue -, Pages 119-123Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2014.07.010
Keywords
Ab initio nuclear structure theory; Chiral effective field theory; Coupled-cluster theory; Heavy nuclei
Funding
- Deutsche Forschungsgemeinschaft [SFB 634]
- Helmholtz International Center for FAIR (HIC for FAIR) within the LOEWE program of the State of Hesse
- BMBF [06DA7047I]
- Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231]
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We present the first ab initio calculations of nuclear ground states up into the domain of heavy nuclei, spanning the range from O-16 to Sn-132, based on two- plus three-nucleon interactions derived within chiral effective field theory. We employ the similarity renormalization group for preparing the Hamiltonian and use coupled-cluster theory to solve the many-body problem for nuclei with closed sub-shells. Through an analysis of theoretical uncertainties resulting from various truncations in this framework, we identify and eliminate the technical hurdles that previously inhibited the step beyond medium-mass nuclei, allowing for reliable validations of nuclear Hamiltonians in the heavy regime. Following this path we show that chiral Hamiltonians qualitatively reproduce the systematics of nuclear ground-state energies up to the neutron-rich Sn isotopes. (C) 2014 The Authors. Published by Elsevier B.V.
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