The light sigma meson
High Energy Physics - Phenomenology
2009-10-31 v1
Abstract
In the framework of the dispersion relation N/D-approach, we restore the low-energy pi-pi (IJ^{PC}=00^{++})-wave amplitude sewing it with the previously obtained K-matrix solution for the region 450-1900 MeV. The restored N/D-amplitude has a pole on the second sheet of the complex-s plane near the pi-pi threshold, that is the light sigma meson.
Keywords
Cite
@article{arxiv.hep-ph/0006083,
title = {The light sigma meson},
author = {V. V. Anisovich and V. A. Nikonov},
journal= {arXiv preprint arXiv:hep-ph/0006083},
year = {2009}
}
Comments
5 pages, LaTeX, 3 EPS figures, epsfig.sty