Physics with Tau Lepton Final States in ATLAS

Physics involving tau lepton signatures from an integral part of the ATLAS physics program. The usage of tau lepton identification is used in many results at ATLAS, from searches for exotic phenomena and Higgs bosons, along with Standard Model measurements of cross-sections. This talk reviews the performance of the reconstruction algorithm for hadronically decaying tau leptons. In addition, cross-sections of Standard Model processes involving tau decays are presented. Searches for Higgs bosons and other phenomena beyond the Standard Model with tau lepton signatures are also discussed.