Two loops calculation in chiral perturbation theory and the unitarization program of current algebra

Abstract

In this paper we compare two loop Chiral Perturbation Theory (ChPT) calculation of pion-pion scattering with the unitarity second order correction to the current algebra soft-pion theorem. It is shown that both methods lead to the same analytic structure for the scattering amplitude.

13 pages, Revtex 3.0, no figures, submitted to Phys. Lett. B

References in corpus (2)

• Elastic $\pi \pi$ scattering to two loops
• The Low Energy $\pi \pi$ Amplitude to One and Two Loops

Cited by in corpus (2)

• Roy equation analysis of pi pi scattering
• Unitarized pion-nucleon scattering amplitude from inverse amplitude method