Measurement of the Z→ττ cross section with the ATLAS detector

The Z→ττ cross section is measured with the ATLAS experiment at the LHC in four different final states determined by the decay modes of the τ leptons: muon-hadron, electron-hadron, electron-muon, and muon-muon. The analysis is based on a data sample corresponding to an integrated luminosity of 36 pb-1, at a proton-proton center-of-mass energy of s=7 TeV. Cross sections are measured separately for each final state in fiducial regions of high …