arXiv:hep-ph/0205214·v2·High Energy Physics — Phenomenology
The [1,2] Padé Amplitudes for Scatterings in Chiral Perturbation Theory
Guang-You Qin🇨🇳 · W. Z. Deng🇨🇳 · Z. G. Xiao🇨🇳 · H. Q. Zheng🇨🇳
Abstract
A detailed analysis to the [1,2] Padé approximation to the scattering 2--loop amplitudes in chiral perturbation theory is made.
Comments: Discussions expanded and references are added, version to appear in Physics Letters B