Chiral dynamics of many pion systems: the rho to 4 pi and omega to 5 pi decays

1999/11/30 by N. N. Achasov, Achasov, N. N., A. A. Kozhevnikov +1
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #Nuclear Theory (nucl-th) #hep-ex #hep-ph #nucl-th

paper · pdf · doi:10.48550/arxiv.hep-ph/9911531

LaTeX, 10 pages. Talk presented by N.N. Achasov at Workshop on Physics and Detectors for DAFNE - Frascati, Nov. 16-19, 1999

arxiv created 1999/11/30 · arxiv updated 2009/11/30

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 CMD-2 data is given. The partial widths of the decays omega to 2 pi⁺ 2 pi^- pi⁰ and omega to pi⁺ pi^-3 pi⁰ which can be measured on colliders with luminosity 10³³cm ^-2s^-1 are evaluated for the first time.

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