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We perform no-core full configuration calculations for a set of light nuclei including ^16O with a realistic NN interaction, JISP16. We obtain ground-state energies and their uncertainties through exponential extrapolations that we demonstrate are reliable in ^2H, ^3H, and ^4He test cases where fully converged results are obtained directly. We find that ^6He, ^6Li, and ^8He are underbound by about 600 keV, 560 keV, and 1. 7 MeV, respectively. ^12C is overbound by about 1. 7 MeV and ^16O is overbound by about 16 MeV. The first excited 0^+ states in ^12C and ^16O are also evaluated but their uncertainties are significantly larger than the uncertainties for the ground states.
Maris et al. (Thu,) studied this question.