Padé expansion and the renormalization of nucleon-nucleon scattering

Abstract

The importance of imposing physical boundary conditions on the $T$-matrix to remove the nonperturbative renormalization prescription dependence is stressed and demonstrated in two diagonal channels, ${}^1{P}_1$ and ${}^1{D}_2$, with the help of Padé expansion.

Comments: 4 pages, 2 figures, to appear in Chinese Physics Letters