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

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