a1πContribution to e+e- 4πAnnihilation and τ 4πντ Decay
A. I. Milstein
Abstract
The results of the study of the process e+e- 4πby the CMD-2 collaboration at VEPP-2M are presented. Analysis of the differential distributions demonstrates the dominance of the a1πand ωπintermediate states. Simple model, based on the assumption of a1(1260)πand ωπdominance as intermediate states, successfully describes also the data of CLEOII and ALEPH obtained recently for the decay τ 4πντ.
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