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research article
Search for lepton-flavor-violating τ → ℓ V0 decays at Belle
We have searched for neutrinoless τ lepton decays into ℓ and V0, where ℓ stands for an electron or muon, and V0 for a vector meson (φ{symbol}, ω, K* 0, over(K, ̄)* 0 or ρ0), using 543 fb-1 of data collected with the Belle detector at the KEKB asymmetric-energy e+ e- collider. No excess of signal events over the expected background has been observed, and we set upper limits on the branching fractions in the range (5.9 - 18) × 10-8 at the 90% confidence level. These upper limits are significantly more restrictive than our previous results for the ℓφ{symbol}, ℓ K* 0, ℓ over(K, ̄)* 0 and ℓ ρ0 modes. © 2008 Elsevier B.V.
Type
research article
Web of Science ID
WOS:000257221800008
Scopus ID
2-s2.0-44249090203
Authors
Nishio, Y.
•
Inami, K.
•
Ohshima, T.
•
Adachi, I.
•
Aihara, H.
•
Arinstein, K.
•
Aulchenko, V.
•
Aushev, T.
•
Aziz, T.
•
Bakich, A.M.
Publication date
2008
Volume
664
Issue
1-2
Start page
35
End page
40
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
November 5, 2010
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