Title: Hadronic Tau lepton Decay Studies in the Belle Experiment


Study of the hadronic decay of tau lepton is important for understanding the elemental parameters of the Standard Model, such as Vus, ms and alpha_s. The importance of this study has developed since the measurement of Vus from tau decays bythe BaBar experiment, which showed large discrepancy with previous Kaon decay results. In this talk, a review and the implications of the results of hadronic tau lepton decay studies in the Belle experiment will be given, together with some of the results from BaBar experiment. A special focus will be given to the Vus measurement and an issue of mass spectrum measurement. A short review on the Belle and Belle-II experiment (and their status) will be covered also.