CVC and τ\rightarrow η(η^\prime)π^{-}π^{0}ν_τ

Details CVC and τ\rightarrow η(η^\prime)π^{-}π^{0}ν_τ CVC and τ\rightarrow η(η^\prime)π^{-}π^{0}ν_τ

2010-12-12

arxiv.org/abs/1012.2564v2

Physics

High Energy Physics

High Energy Physics - Experiment

6 pages, 5 figures, Talk at The 11th International Workshop on Tau Lepton Physics Manchester, UK, 13-17 September 2010

Scientific paper

We use experimental data on $e^{+}e^{-} \rightarrow \eta\pi^{+}\pi^{-}$ and $\tau^{-} \to \eta\pi^{-}\pi^{0}\nu_{\tau}$ to test conservation of vector current (CVC) by comparing the predicted hadronic spectrum and branching fraction with the $\tau$ decay data. Based on the corresponding $e^+e^-$ data and CVC, we also calculate the branching fraction of $\tau^{-} \to \eta^\prime\pi^{-}\pi^{0}\nu_{\tau}$ decay.

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