The Present Status on sigma and kappa Meson Properties
High Energy Physics - Phenomenology
2009-11-07 v1
Abstract
The recent experimental data of both pipi / Kpi scattering and production processes, suggesting the existence of scalar sigma and kappa mesons, are reviewed. In many pipi /Kpi production processes the direct effects of their productions are observed, while they are, because of chiral symmetry, hidden in scattering processes, and now sigma(500--600) and kappa(800--900) are considered to be confirmed experimentally. The recent criticism on our method of analyses, which is based on the long believed prejudice of universal pipi / Kpi phase through scattering and production amplitudes, is explained not to be valid.
Cite
@article{arxiv.hep-ph/0212383,
title = {The Present Status on sigma and kappa Meson Properties},
author = {Muneyuki Ishida},
journal= {arXiv preprint arXiv:hep-ph/0212383},
year = {2009}
}
Comments
draft of the proceedings of "Chiral' 02" in Kyoto, Oct 2002