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Upper limit on the branching ratio for the decay τ-→Π-ηvτ
Published Web Location
https://doi.org/10.1016/0370-2693(87)91056-2Abstract
We have searched for the decay τ-→Π-ηvτ using the MARK II detector at the PEP e+e- storage ring. No evidence for the decay is found; the upper limit for the branching ratio is B(τ-→Π-ηvτ)<1.0% at the 95% confidence level. © 1987.
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