Generalized Weinberg's approach to the a0/f0 case
High Energy Physics - Phenomenology
2009-11-10 v2
Abstract
The problem of whether it is possible to distinguish composite from elementary particles is studied in the framework of Weinberg's approach. The possibility to extend this approach to the case of unstable particles in the presence of inelastic channels is considered. The interplay between the low-energy scattering data and the admixture of a bare state in the resonance is discussed, and the implications for the a0(980)/f0(980) case are outlined.
Keywords
Cite
@article{arxiv.hep-ph/0311302,
title = {Generalized Weinberg's approach to the a0/f0 case},
author = {Yu. S. Kalashnikova},
journal= {arXiv preprint arXiv:hep-ph/0311302},
year = {2009}
}
Comments
LaTeX2e, 5 pages, 2 figures, to appear in the proceedings of the HADRON03 conference, Aschaffenburg, Germany. September 2003, typo corrected