Chiral dynamics of many-pion systems

Details Chiral dynamics of many-pion systems Chiral dynamics of many-pion systems

1999-11-09

arxiv.org/abs/hep-ph/9911279v1

Phys.Rev. D61 (2000) 077904

Physics

High Energy Physics

High Energy Physics - Phenomenology

Revtex, 8 pages, 2 ps figures

Scientific paper

10.1103/PhysRevD.61.077904

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 CMD-2 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.

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