Search for neutrinoless decays τ→3ℓ

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Abstract

We have searched for neutrinoless τ lepton decays into three charged leptons using an 87.1fb-1 data sample collected with the Belle detector at the KEKB e+e- collider. Since the number of signal candidate events is compatible with that expected from the background, we set 90% confidence level upper limits on the branching fractions in the range (1.9-3.5)×10-7 for various decay modes τ -→ℓ-ℓ+ℓ- where ℓ represents e or μ. © 2004 Published by Elsevier B.V.

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APA

Yusa, Y., Nagamine, T., Yamaguchi, A., Abe, K., Abe, K., Abe, T., … Žontar, D. (2004). Search for neutrinoless decays τ→3ℓ. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 589(3–4), 103–110. https://doi.org/10.1016/j.physletb.2004.04.002

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