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Proceedings of The European Physical Society Conference on High Energy Physics — PoS(EPS-HEP 2013)
We describe the energy scale calibration of hadronic τ decays and the associated uncertainty using 4.5 fb −1 of data at √ s = 8 TeV recorded in 2012 with the ATLAS detector at the LHC. The calibration is based on simulated τ decays, while the systematic uncertainty includes contributions from the single particle response measurements, pile-up and material modeling. The systematic uncertainty on the hadronic τ energy scale for p τ T > 20 GeV and |η τ | < 2.5 is found to be ≤ 3% for the hadronicdoi:10.22323/1.180.0041 fatcat:d2v5go6xvbh7pb4oqgizz3iboe