a_1πContribution to e^+e^-\to 4πAnnihilation and τ\to 4πν_τ Decay

Details a_1πContribution to e^+e^-\to 4πAnnihilation and τ\to 4πν_τ Decay a_1πContribution to e^+e^-\to 4πAnnihilation and τ\to 4πν_τ Decay

2000-01-21

arxiv.org/abs/hep-ex/0001050v1

Physics

High Energy Physics

High Energy Physics - Experiment

9 pages, Latex, Talk at Int. Workshop "Physics and Detectors for DAFNE"- Fraskati, Nov.16-19, 1999

Scientific paper

The results of the study of the process e^+e^- \to 4\pi by the CMD-2 collaboration at VEPP-2M are presented. Analysis of the differential distributions demonstrates the dominance of the a_1\pi and \omega\pi intermediate states. Simple model, based on the assumption of a_1(1260)\pi and \omega\pi dominance as intermediate states, successfully describes also the data of CLEOII and ALEPH obtained recently for the decay \tau\to 4\pi\nu_{\tau}.

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