Hadronic Tau-Decays at Belle

Based on a large data sample of tau decays, accumulated with the Belle detector at the KEKB e(+) e(-) collider, the branching fraction, B(tau(-) -> K-s pi(-)nu) = (0.404 +/- 0.002(stat.) +/- 0.013(syst.))%, has been obtained with better accuracy than previously. The K-s pi(-) mass spectrum was also studied, and for the first time the K-*(892)(-) mass and width were obtained in tau decay. The branching fractions of tau-decays involving eta were measured with much improved precision: B(tau(-) -> K-eta nu) = (1.62 +/- 0.10) x 10(-4) , and B(tau(-) -> K-pi(0)eta nu) = (0.47 +/- 0.11 +/- 0.04) x 10(-4) , B(tau(-) -> K*-eta nu) = (1.10 +/- 0.19 +/- 0.07) x 10(-4) , and B(tau(-) -> pi(-)pi(0)eta nu) = (1.39 +/- 0.03 +/- 0.07) x 10(-3) . These results are precise enough to distinguish theoretical calculations in CVC and Chiral models.