Three pseudoscalar meson production in $e^{+}{e}^{-}$ annihilation

Abstract

We study, at leading order in the large number of colours expansion and within the Resonance Chiral Theory framework, the odd-intrinsic-parity $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}({\pi }^0,\eta )$ cross-sections in the energy regime populated by hadron resonances, namely $3m_{\pi }\text{lsim}E\text{lsim}2\text{mbox}GeV$. In addition we implement our results in the Monte Carlo generator PHOKHARA 7.0 and we simulate hadron production through the radiative return method.

Comments: 39 pages, 5 figures