The [1,2] Padé Amplitudes for Scatterings in Chiral Perturbation Theory
arXiv:hep-ph/0205214 · doi:10.1016/S0370-2693(02)02312-2
Abstract
A detailed analysis to the [1,2] Padé approximation to the scattering 2--loop amplitudes in chiral perturbation theory is made.
Discussions expanded and references are added, version to appear in Physics Letters B