Çetin, Serkant Ali2020-12-042020-12-042017-09-25https://hdl.handle.net/11411/2775https://doi.org/10.1007/JHEP09(2017)118The top-quark mass is measured in the all-hadronic top-antitop quark decay channel using proton-proton collisions at a centre-of-mass energy of root s = 8 TeV with the ATLAS detector at the CERN Large Hadron Collider. The data set used in the analysis corresponds to an integrated luminosity of 20.2 fb(-1). The large multi-jet background is modelled using a data-driven method. The top-quark mass is obtained from template fits to the ratio of the three-jet to the dijet mass. The three-jet mass is obtained from the three jets assigned to the top quark decay. From these three jets the dijet mass is obtained using the two jets assigned to the W boson decay. The top-quark mass is measured to be 173.72 +/- 0.55 (stat.) +/- 1.01 (syst.) GeV.eninfo:eu-repo/semantics/openAccessHadron-Hadron scattering (experiments)Top physicsArticle2-s2.0-8503011684810.1007/JHEP09(2017)118Q1Q1WOS:000412016600001