Abstract
We report accurate quantum Monte Carlo calculations of nuclei up to A=16 based on local chiral two- and three-nucleon interactions up to next-to-next-to-leading order. We examine the theoretical uncertainties associated with the chiral expansion and the cutoff in the theory, as well as the associated operator choices in the three-nucleon interactions. While in light nuclei the cutoff variation and systematic uncertainties are rather small, in O16 these can be significant for large coordinate-space cutoffs. Overall, we show that chiral interactions constructed to reproduce properties of very light systems and nucleon-nucleon scattering give an excellent description of binding energies, charge radii, and form factors for all these nuclei, including open-shell systems in A=6 and 12.
Original language | English (US) |
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Article number | 122502 |
Journal | Physical Review Letters |
Volume | 120 |
Issue number | 12 |
DOIs | |
State | Published - Mar 22 2018 |
ASJC Scopus subject areas
- General Physics and Astronomy