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VOLUME 26 (1977) | ISSUE 7 | PAGE 563
Production of four pions in e+e collisions and partial conservation of axial current
It is shown that allowance for partial conservation of the axial current (PCAC) and for the identity of the final pions in the reaction e +e ~—φπ+7τ~ leads to ι total cross section energy dependence that agrees with experiment. The ratio of the cross sections of the reactions e +e ~—>Ò7Ç+ÔÇ~ and e +e ~—>Ò7Ç°7Ç° is calculated.