H1prelim-04-061

The production of tau leptons in ep Collisions at HERA

Reference Preliminary results expected for DIS2004, Spring 2004
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Contact Gerhard Brandt, Christian Veelken, S.Xella
Abstract The production of tau leptons is studied using an identification algorithm based on the search for narrow hadronic jets with low multiplicity, typical for the hadronic tau decay. A search for events with high PT isolated tau leptons and missing transverse momentum is performed using a data sample corresponding to HERA I running period. The search complements the observation of isolated electrons and muons in events with missing transverse momentum. A search for events with two tau leptons is also performed, similar to the previous studies of multi-electron and multi-muon production at HERA.
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