Article
Top-quark mass measurement in the all-hadronic tt¯ decay channel at s=8 TeV with the ATLAS detector
Journal of High Energy Physics, Springer Nature, ISSN 1126-6708
Volume 2017, 9, 2017
DOI:10.1007/jhep09(2017)118, Dimensions: pub.1091978562,
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The 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 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.
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Field Citation Ratio (FCR): 2.87