Inverse amplitude method for unitarizing SU(3) chiral perturbation theory, following the paper:
A. Gomez Nicola, J. R. Pelaez, Meson-meson scattering within one-loop chiral perturbation theory and its unitarization, Phys. Rev. D 65 (2002) 054009 [arXiv:hep-ph/0109056].
Fit to meson-meson scattering data using coupled-channel IAM with unitarity fulfilled by removing the imaginary part of the loops with unphysical left-hand cuts. The results are reported in
Y.-J. Shi, C.-Y. Seng, F.-K. Guo, B. Kubis, U.-G. Meißner, W. Wang, Two-Meson Form Factors in Unitarized Chiral Perturbation Theory, arXiv:2011.00921.
The jupyter notebook iamfit.ipynb performing the IAM fit can be played interactively on line by clicking
