Search for Lepton-Flavor-Violating tau Decays into a Lepton and a Vector Meson

We search for lepton-flavor-violating τ→ℓV0 decays, where ℓ is an electron or muon and V0 is one of the vector mesons ρ0 , ϕ , ω , K⁎0 and K¯⁎0 . We use 854 fb−1 of data collected with the Belle detector at the KEKB asymmetric-energy e+e− collider. No evidence for a signal is found in any decay mode, and we obtain 90% confidence level upper limits on the individual branching fractions in the range (1.2–8.4)×10−8 .

Note:

Long author list - awaiting processing •
13 pages, 5 figures, submitted to Phys. Lett. B

14.60.Fg
11.30.Fs
13.35.Dx
Tau
Lepton flavor violation
B-factory
B -factory
tau: semileptonic decay
lepton: flavor: violation
tau: branching ratio: upper limit

References(24)

Figures(0)

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