2017/09/28 by R. Nisius, Nisius, Richard
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Particle Detector Development and Performance #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.1709.09845
openalex publication_date 2017/09/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The measurements of the top quark mass given are obtained from ATLAS data taken at proton--proton centre-of-mass energies of √(s)=7 and 8 TeV. An extraction of the top quark pole mass (mtoppole) at next-to-leading order (NLO) is presented. This result is obtained from normalised differential cross-sections in the tt\todilepton channel leading to: mtoppole = 173.2 ± 0.9 (stat.) ± 0.8 (syst.) ± 1.2 (theo.) GeV. In addition, measurements of mtop are discussed that are based on the template method performed in three tt decay channels. For all results the uncertainty is dominated by systematic effects. Finally, the 2016 ATLAS combined value of mtop is: mtop=172.84 ± 0.34 (stat.) ± 0.61 (syst.) GeV,with a total uncertainty of 0.70 GeV, i.e. a precision of 0.4%.