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arXiv · 1508.05040

Exploring sd-shell nuclei from two- and three-nucleon interactions with realistic saturation properties

J. Simonis·K. Hebeler·J. D. Holt·J. Menendez·A. Schwenk
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Abstract

We study ground- and excited-state properties of all sd-shell nuclei with neutron and proton numbers 8 <= N,Z <= 20, based on a set of low-resolution two- and three-nucleon interactions that predict realistic saturation properties of nuclear matter. We focus on estimating the theoretical uncertainties due to variation of the resolution scale, the low-energy couplings, as well as from the many-body method. The experimental two-neutron and two-proton separation energies are reasonably well reproduced, with an uncertainty range of about 5 MeV. The first excited 2+ energies also show overall agreement, with a more narrow uncertainty range of about 500 keV. In most cases, this range is dominated by the uncertainties in the Hamiltonian.

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J. Simonis, K. Hebeler, J. D. Holt, J. Menendez, A. Schwenk. 2015-08-20. Exploring sd-shell nuclei from two- and three-nucleon interactions with realistic saturation properties. https://doi.org/10.1103/physrevc.93.011302

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