Reduced regulator dependence of neutron-matter predictions with perturbative chiral interactions

L. Coraggio, J. W. Holt, N. Itaco, R. Machleidt, F. Sammarruca
2013 Physical Review C  
We calculate the energy per particle in infinite neutron matter perturbatively using chiral N3LO two-body potentials plus N2LO three-body forces. The cutoff dependence of the predictions is investigated by employing chiral interactions with different regulators. We find that the inclusion of three-nucleon forces, which are consistent with the applied two-nucleon interaction, leads to a strongly reduced regulator dependence of the results.
doi:10.1103/physrevc.87.014322 fatcat:wg4pvea2lnbutm2xubtcf4mw64