Ab initio no-core full configuration calculations of light nuclei

Abstract

We perform no-core full configuration calculations for a set of light nuclei including ${}^{16}$O with a realistic NN interaction, JISP16. We obtain ground state energies and their uncertainties through exponential extrapolations that we demonstrate are reliable in ${}^2$H, ${}^3$H and ${}^4$He test cases where fully converged results are obtained directly. We find that ${}^6$He, ${}^6$Li and ${}^8$He are underbound by about 600 keV, 560 keV and 1.7 MeV, respectively. ${}^{12}$C is overbound by about 1.7 MeV and ${}^{16}$O is overbound by about 16 MeV. The first excited $0^{+}$ states in ${}^{12}$C and ${}^{16}$O are also evaluated but their uncertainties are significantly larger than the uncertainties for the ground states.

16 pages, 31 figures, minor changes made according to referee's suggestions

References in corpus (3)

• Structure of A=10-13 nuclei with two- plus three-nucleon interactions from chiral effective field theory
• Convergence in the no-core shell model with low-momentum two-nucleon interactions
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Cited by in corpus (3)

• Recent developments in no-core shell-model calculations
• Importance Truncation for Large-Scale Configuration Interaction Approaches
• Inverse scattering J-matrix approach to nucleon-nucleus scattering and the shell model