Amplitudes Fitted to Experimental Data and to Roy's Equations
High Energy Physics - Phenomenology
2009-11-10 v1
Abstract
The scalar-isoscalar, scalar-isotensor and vector-isovector pi-pi amplitudes are fitted simultaneously to experimental data and to Roy's equations. The resulting amplitudes are compared with those fitted only to experimental data. No additional constraints for the pi-pi threshold behaviour of the amplitudes are imposed. Threshold parameters are calculated for the amplitudes in the three waves. Spectrum of scalar mesons below 1.8 GeV is found from the analysis of the analytical structure of the fitted amplitudes.
Cite
@article{arxiv.hep-ph/0407338,
title = {Amplitudes Fitted to Experimental Data and to Roy's Equations},
author = {Robert Kaminski and Leonard Lesniak and Benoit Loiseau},
journal= {arXiv preprint arXiv:hep-ph/0407338},
year = {2009}
}
Comments
3 pages, 1 figure. Talk given at MESON 2004: 8th International Workshop on Meson Production, Properties and Interactions, Cracow, Poland, 4-8 Jun 2004. Submitted to Int.J.Mod.Phys.A