Chiral dynamics of many pion systems: the rho to 4 pi and omega to 5 pi decays
Abstract
Based on the Weinberg lagrangian or, in a new language, the lagrangian of hidden local symmetry added with the term induced by the anomalous lagrangian of Wess and Zumino, the dynamics of the decays rho to 4 pi and omega to 5 pi is considered. The excitation curves of rho resonance in its decay to 4 pi are obtained for the first time. The comparison with recent CMD2 data is given. The partial widths of the decays omega to 2 pi^+ 2 pi^ pi^0 and omega to pi^+ pi^3 pi^0 which can be measured on colliders with luminosity 10^{33}{cm }^{2}{s}^{1} are evaluated for the first time.
 Publication:

arXiv eprints
 Pub Date:
 November 1999
 arXiv:
 arXiv:hepph/9911531
 Bibcode:
 1999hep.ph...11531A
 Keywords:

 High Energy Physics  Phenomenology;
 High Energy Physics  Experiment;
 Nuclear Theory
 EPrint:
 LaTeX, 10 pages. Talk presented by N.N. Achasov at Workshop on Physics and Detectors for DAFNE  Frascati, Nov. 1619, 1999