Auxiliary field diffusion Monte Carlo calculations of light and medium-mass nuclei with local chiral interactions
| Autor: | Lonardoni, D., Gandolfi, S., Lynn, J. E., Petrie, C., Carlson, J., Schmidt, K. E., Schwenk, A. |
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| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Phys. Rev. C 97, 044318 (2018) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevC.97.044318 |
| Popis: | Quantum Monte Carlo methods have recently been employed to study properties of nuclei and infinite matter using local chiral effective field theory interactions. In this work, we present a detailed description of the auxiliary field diffusion Monte Carlo algorithm for nuclei in combination with local chiral two- and three-nucleon interactions up to next-to-next-to-leading order. We show results for the binding energy, charge radius, charge form factor, and Coulomb sum rule in nuclei with $3\le A\le16$. Particular attention is devoted to the effect of different operator structures in the three-body force for different cutoffs. The outcomes suggest that local chiral interactions fit to few-body observables give a very good description of the ground-state properties of nuclei up to $^{16}$O, with the exception of one fit for the softer cutoff which predicts overbinding in larger nuclei. Comment: 23 pages, 10 figures |
| Databáze: | arXiv |
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