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Journal Article

Properties of Nuclei up to A= 16 using Local Chiral Interactions


Schwenk,  Achim
Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany;
ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany;
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Lonardoni, D., Carlson, J., Gandolfi, S., Lynn, J. E., Schmidt, K. E., Schwenk, A., et al. (2018). Properties of Nuclei up to A= 16 using Local Chiral Interactions. Physical Review Letters, 120(12): 122502. doi:10.1103/PhysRevLett.120.122502.

Cite as: https://hdl.handle.net/21.11116/0000-0000-F3EE-2
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 16O 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.