Weinberg eigenvalue analysis based on chiral effective field theory interactions

We present a comprehensive Weinberg eigenvalue analysis of a representative set of modern nucleon-nucleon interactions derived within chiral effective field theory, containing recently developed local, semilocal, and nonlocal potentials. We demonstrate that a direct comparison of numerical cutoff values of different interactions is in general misleading due to the different analytic form of regulators. Our detailed comparison of Weinberg eigenvalues provides various insights into properties of chiral potentials for different orders and partial waves. This shows that Weinberg eigenvalues could be used as a helpful monitoring scheme when constructing new interactions.