2010/09/30 by Gosdzik, Bjoern
#FOS: Physical sciences #High Energy Physics - Experiment (hep-ex)
paper · doi:10.48550/arxiv.1009.6135
For many signals in the Standard Model including the Higgs boson, and for new physics like Supersymmetry, τ leptons represent an important signature. This work shows the performance of the ATLAS τ reconstruction and identification algorithms. It will present a set of studies based on data taken in 2010 at a center-of-mass energy of √(s) = 7 TeV. We measured some of the basic input quantities used for these identification methods from selected reconstructed τ candidates and compared the results to the prediction of different Monte Carlo simulation models. For early data taking a cut-based identification method will be used. We also measured the background efficiency for the cut-based τ identification.