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arXiv · 1709.09143

Properties of nuclei up to $A=16$ using local chiral interactions

D. Lonardoni·J. Carlson·S. Gandolfi·J. E. Lynn·K. E. Schmidt·A. Schwenk·X. B. Wang
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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 $^{16}$O 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.

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D. Lonardoni, J. Carlson, S. Gandolfi, J. E. Lynn, K. E. Schmidt, A. Schwenk, X. B. Wang. 2017-09-26. Properties of nuclei up to $A=16$ using local chiral interactions. https://doi.org/10.1103/physrevlett.120.122502

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