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research article
Search for neutrinoless decays τ → ℓ h h and τ → ℓ V0
We have searched for neutrinoless τ lepton decays into ℓhh or ℓ V0, where ℓ stands for an electron or muon, h for a charged light hadron, π or K, and V0 for a neutral vector meson, ρ0, K* (892)0 and φ{symbol}, using a 158 fb-1 data sample collected with the Belle detector at the KEKB e+ e- collider. Since the number of events observed are consistent with the expected background, we set upper limits on the branching fractions in the range of (1.6 - 8.0) × 10-7 for various decay modes at the 90% confidence level. © 2006 Elsevier B.V. All rights reserved.
Type
research article
Web of Science ID
WOS:000240642800005
Scopus ID
2-s2.0-33747888999
Publication date
2006
Volume
640
Issue
4
Start page
138
End page
144
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
November 5, 2010
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