Top-quark mass measurement in the all-hadronic t(t)over-bar decay channel at root s=8 TeV with the ATLAS detectorShow others and affiliations
Number of Authors: 28502017 (English)In: Journal of High Energy Physics (JHEP), ISSN 1126-6708, E-ISSN 1029-8479, no 9Article in journal (Refereed) Published
Abstract [en]
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 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.
Place, publisher, year, edition, pages
SPRINGER , 2017. no 9
Keywords [en]
Hadron-Hadron scattering (experiments), Top physics
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-219779DOI: 10.1007/JHEP09(2017)118ISI: 000412016600001Scopus ID: 2-s2.0-85030116848OAI: oai:DiVA.org:kth-219779DiVA, id: diva2:1165331
Note
QC 20171213
2017-12-132017-12-132022-06-26Bibliographically approved