Consistency checks of different pion-pion scattering data sets using forward dispersion relations
High Energy Physics - Phenomenology
2009-11-11 v1
Abstract
We review our evaluation of forward dispersion relations for direct fits to the different, and often conflicting, pion-pion scattering experimental analyses. We find that some of the most commonly used data sets do not satisfy these constraints by several standard deviations. We also provide a consistent pion-pion amplitude by improving a global fit to data with these dispersion relations.
Keywords
Cite
@article{arxiv.hep-ph/0510215,
title = {Consistency checks of different pion-pion scattering data sets using forward dispersion relations},
author = {J. R. Pelaez},
journal= {arXiv preprint arXiv:hep-ph/0510215},
year = {2009}
}
Comments
To appear in the Proceedings of the XI. International Conference on Hadron Spectroscopy- HADRON05. Rio de Janeiro. 21st-25th August. 2005