Top-quark mass measurement in the all-hadronic tt¯ decay channel at s=8 TeV with the ATLAS detector Academic Article uri icon

abstract

  • © 2017, The Author(s). 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.[Figure not available: see fulltext.].

altmetric score

  • 0.5

author list (cited authors)

  • The ATLAS collaboration, .., Aaboud, M., Aad, G., Abbott, B., Abdallah, J., Abdinov, O., ... Zwalinski, L.

citation count

  • 6

publication date

  • September 2017