Measurement of the Top Quark Mass in the tt̅ → Lepton + Jets Channel from √s=8 TeV ATLAS Data and Combination with Previous Results

dc.contributor.VIAF250674117 (Izen, JM)
dc.contributor.authorAaboud, M.
dc.contributor.authorAad, G.
dc.contributor.authorAbbott, B.
dc.contributor.authorAbdinov, O.
dc.contributor.authorAbeloos, B.
dc.contributor.authorAbhayasinghe, D. K.
dc.contributor.authorAbidi, S. H.
dc.contributor.authorIzen, Joseph M.
dc.contributor.authorMeirose, Bernhard
dc.contributor.authorReeves, Kendall
dc.contributor.authorATLAS Collaboration
dc.contributor.utdAuthorIzen, Joseph M.
dc.contributor.utdAuthorMeirose, Bernhard
dc.contributor.utdAuthorReeves, Kendall
dc.date.accessioned2019-10-31T15:20:25Z
dc.date.available2019-10-31T15:20:25Z
dc.date.created2019-03-29
dc.description.abstractThe top quark mass is measured using a template method in the tt̅ → lepton + jets channel (lepton is e or μ) using ATLAS data recorded in 2012 at the LHC. The data were taken at a proton–proton centre-of-mass energy of √s=8 TeV and correspond to an integrated luminosity of 20.2 fb⁻¹ . The tt̅ → lepton + jets channel is characterized by the presence of a charged lepton, a neutrino and four jets, two of which originate from bottom quarks (b). Exploiting a three-dimensional template technique, the top quark mass is determined together with a global jet energy scale factor and a relative b-to-light-jet energy scale factor. The mass of the top quark is measured to be m_{top}=172.08 ± 0.39(stat) ± 0.82(syst) GeV. A combination with previous ATLAS m_{top} measurements gives m_{top}=172.69 ± 0.25(stat) ± 0.41(syst) GeV. ©2019 CERN for the benefit of the ATLAS collaboration.
dc.description.departmentSchool of Natural Sciences and Mathematics
dc.identifier.bibliographicCitationAaboud, M., G. Aad, B. Abbott, O. Abdinov, et al. 2019. "Measurement of the top quark mass in the tt¯ → lepton+jets channel from √s=8 TeV ATLAS data and combination with previous results." European Physical Journal C 79(4): art. 290, doi: 10.1140/epjc/s10052-019-6757-9
dc.identifier.issn1434-6044
dc.identifier.issue4
dc.identifier.urihttps://hdl.handle.net/10735.1/7061
dc.identifier.volume79
dc.language.isoen
dc.publisherSpringer New York Llc
dc.relation.urihttps://dx.doi.org/10.1140/epjc/s10052-019-6757-9
dc.rightsCC BY 4.0 (Attribution)
dc.rights©2019 CERN, for the ATLAS Collaboration
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.source.journalEuropean Physical Journal C
dc.subjectQuarks--Charm
dc.subjectLeptons (Nuclear physics)
dc.subjectJets (Nuclear physics)
dc.subjectNeutrinos
dc.titleMeasurement of the Top Quark Mass in the tt̅ → Lepton + Jets Channel from √s=8 TeV ATLAS Data and Combination with Previous Results
dc.type.genrearticle

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