Exploring sd-shell nuclei from two- and three-nucleon interactions with realistic saturation properties
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.
Cite
@article{arxiv.1508.05040,
title = {Exploring sd-shell nuclei from two- and three-nucleon interactions with realistic saturation properties},
author = {J. Simonis and K. Hebeler and J. D. Holt and J. Menendez and A. Schwenk},
journal= {arXiv preprint arXiv:1508.05040},
year = {2016}
}
Comments
6 pages, 4 figures