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arXiv · 1204.1455

The processes $e^{+}e^{-} \to \pi\pi(\pi')$ in the extended NJL model

M. K. Volkov·D. G. Kostunin
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Abstract

The process $e^{+}e^{-} \to \pi^{+}\pi^{-}$ is described in the framework of the extended NJL model. Intermediate vector mesons $\rho^0(770)$, $\omega(782)$ and \rho'(1450)$ are taken into account. Our results are in satisfactory agreement with experimental data. The prediction for the process $e^{+}e^{-} \to \pi\pi'(1300)$ is given. Here the main contribution is given by the diagram with intermediate $\rho'(1450)$ meson.

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M. K. Volkov, D. G. Kostunin. 2012-04-06. The processes $e^{+}e^{-} \to \pi\pi(\pi')$ in the extended NJL model. https://doi.org/10.1103/physrevc.86.025202

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