Belle's precise measurement of τ-decay with η's

We have measured branching fractions of hadronic τ-decays involving an η meson, using 490 fb−1 of data collected with the Belle detector at the KEKB asymmetric-energy e+e− collider: B(τ−→K−ηντ)=(1.58±0.05±0.09)×10−4, B(τ−→K−π0ηντ)=(4.6±1.1±0.4)×10−5, B(τ−→π−π0ηντ)=(1.35±0.03±0.07)×10−3, , and B(τ−→K∗−ηντ)=(1.34±0.12±0.09)×10−4. Thoese results are compared with theoretical calculations based on the CVC hypothesis or the VDM model.