Searches for lepton flavor violating decays τ±→ℓ±γ, τ±→ℓ±P0 (where ℓ−=e−,μ−, and P0=π0,η,η′) at B-Factories: Status and Combinations

The present experimental status of searches for lepton flavor violating decays of the τ lepton to a lighter mass lepton and a photon or a pseudoscalar meson is presented. The results obtained are from e+e− annihilation data collected at a center-of-mass energy near 10.58 GeV by the BaBar and the Belle detectors. In order to benefit from larger available datasets, the first BaBar–Belle combinations of upper limits on the branching fractions of lepton flavor violating τ-decays are obtained.