Renormalization and Power Counting of Chiral Nuclear Forces

We study renormalization of chiral nuclear forces by examining the cutoff dependence of the solution to the Lippmann-Schwinger equation for nucleon-nucleon scattering. In particular, we are interested in the interplay between renormalization and power counting of nucleon-nucleon contact interactions, leading to necessary modifications to Weinberg's original power counting scheme. We also discuss the difference between the conclusions of the previous investigations and ours.