Pade Unitarizations: A Critical Look
High Energy Physics - Phenomenology
2010-04-21 v1
Abstract
We use the Linear Sigma Model to test the convergence of different sequences of Pade Approximants when used to unitarize the low energy pi-pi scattering amplitude. We find that, in this particular case, diagonal sequences reproduce the sigma pole with high accuracy, as opposed to other sequences that have been discussed extensively.
Cite
@article{arxiv.0809.2661,
title = {Pade Unitarizations: A Critical Look},
author = {Javier Virto},
journal= {arXiv preprint arXiv:0809.2661},
year = {2010}
}
Comments
4 pages, 4 figures. To appear in the proceedings of QCD'08