Reduced regulator dependence of neutron-matter predictions with perturbative chiral interactions
Reduced regulator dependence of neutron-matter predictions with perturbative chiral interactions
We calculate the energy per particle in infinite neutron matter perturbatively using chiral N${}^{3}$LO (next-to-next-to-next-to-leading order) two-body potentials plus N${}^{2}$LO 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 …