\tau lepton decays and CVC
msra(2009)
摘要
We use experimental data on $e^+e^- \to \eta (\eta^{\prime})\pi^+\pi^-$ and
conservation of vector current to estimate the branching fractions of $\tau^-$
decay to $\eta (\eta^{\prime})\pi^-\pi^0\nu_{\tau}$. The obtained values are
compared to the experimental results.
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关键词
high energy physics
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