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

2); (2) JLAB (USA); (3) IFIC (Spain); (4) NSC Kharkov Institute (Ukraine); 5) ((1) Peking U. (China); (5) Institute of Nuclear Physics (Poland)); J. Portoles (3); L.Y. Dai (1; O. Shekhovtsova (4

arxiv: 1305.5751 · v1 · pith:CFWG7FGMnew · submitted 2013-05-24 · ✦ hep-ph · hep-ex

Three pseudoscalar meson production in e^+ e^- annihilation

L.Y. Dai (1 , 2) , J. Portoles (3) , O. Shekhovtsova (4 , 5) ((1) Peking U. (China) , (2) JLAB (USA) , (3) IFIC (Spain) , (4) NSC Kharkov Institute (Ukraine)

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(5) Institute of Nuclear Physics (Poland))

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classification ✦ hep-ph hep-ex

keywords hadronlsimproductionadditionannihilationcarlochiralcolours

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

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