Tau lepton physics at LEP

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The talk covers three contributions on (i) the final measurement of branching ratios and spectral functions of t decays using the full LEP-I data from ALEPH, (ii) a preliminary measurement of the t hadronic branching ratios from DELPHI and (iii) a measurement of the strange spectral function in hadronic t decays from OPAL. These measurements are discussed and the relevant physics topics are briefly reviewed.
Presented at the International Europhysics Conference on High Energy Physics (EPS-HEP2005), Lisboa, Portugal, July 21-27, 2005, On behalf of the ALEPH, DELPHI and OPAL Collaborations

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