The decay $τ\to πων$ in the extended NJL model

preprint2012arXivOpen access

The decay width $τ\toπων$ in the framework of the extended NJL model is calculated. The contributions of the intermediate vector mesons $ρ(770)$ and $ρ'(1450)$ are taken into account. The computed partial width and the spectral function of the decay $τ\toπων$ are in satisfactory agreement with experimental data.

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The decay $τ\to πων$ in the extended NJL model

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The decay τ→πωντ\to πωντ→πων in the extended NJL model

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The decay $τ\to πων$ in the extended NJL model