Muon identification algorithms in ATLAS

In the midst of the intense activity that will arise from the proton-proton collisions at the LHC, muons will be very useful to spot rare events of interest. The good resolution expected for their momentum measurement shall also make them powerful tools in event reconstruction. Muon identification will thus be a crucial issue in the ATLAS experiment at the LHC. The different strategies and corresponding algorithms used for muon reconstruction are presented here: standalone reconstruction in the outer spectrometer only, combined reconstruction with the inner detector, and muon tagging of inner tracks using raw information from the outer spectrometer and the calorimeter.