Spin-Momentum Correlation (Handedness) in the Process of Four Pions Production in the Electron-Positron Collisions

Abstract

We discuss special type of polarization asymmetry (``handedness") in the process $e^{+}{e}^{-}\to 4\pi$, when one of initial particles is longitudinally polarized. The asymmetry is proportional to the degree of polarization and to the width to mass ratio of rho-meson. It can reach 4-5\% in some kinematical region. Both channels $2{\pi }^{+}2{\pi }^{-}$ and $2{\pi }^0{\pi }^{+}{\pi }^{-}$ are considered in the framework of the effective chiral lagrangian with vector mesons, in the energy range $\sim 1$ GeV. The corresponding total cross sections are also calculated.

Comments: 9 pages, Latex, without figures. To appear in Phys. Lett. B