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

E. L. Bratkovskaya·E. A. Kuraev·Z. K. Silagadze·O. V. Teryaev
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Abstract

We discuss special type of polarization asymmetry (``handedness") in the process $e^+e^-\to 4π$, 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 $2 π^+ 2 π^-$ and $2 π^0 π^+ π^-$ 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.

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E. L. Bratkovskaya, E. A. Kuraev, Z. K. Silagadze, O. V. Teryaev. 1994-12-05. Spin-Momentum Correlation (Handedness) in the Process of Four Pions Production in the Electron-Positron Collisions. https://doi.org/10.1016/0370-2693(94)90802-8

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