ISSN - 0094243X, AIP Conference Proceedings, 2004, vol. 717, p. 60-64
Experimental study of the e<sup>+</sup>e<sup>-</sup> → π<sup>+</sup>π<sup>-</sup>π<sup>0</sup> reaction by SND detector in the energy range s = 0.42-1.38 GeV
© 2004 American Institute of Physics. The review of the SND results of the e + e - → π + π - π 0 process study in the energy range s = 0.42-1.38 GeV at VEPP-2M collider, based on about 2 × 10 6 selected events, is presented. The total cross section, parameters of the ρ, ω, φ, resonances, and ω′, ω″ states were obtained. It was found that ρπ and ωπ 0 intermediate states describe the reaction dynamics. The experimental data cannot be described by a sum of only ω, φ, ω′ and ω″ resonances contributions. This can be interpreted as a manifestation of the ρ → 3π decay, suppressed by G-parity, with relative probability B(ρ → 3π) = (1.01 ±0.360.54±0.034) × 10-4.