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Measurement of the top quark mass in the tt¯ → lepton+jets channel from √s = 8 TeV ATLAS data and combination with previous results

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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.authorAbouZeid, O.S.
dc.contributor.authorAbraham, N.L.
dc.contributor.authorAbramowicz, H.
dc.contributor.authorAbreu, H.
dc.contributor.authorAbulaiti, Y.
dc.contributor.authorAcharya, B.S.
dc.contributor.authorAdachi, S.
dc.contributor.authorAdam, L.
dc.contributor.authorAdamczyk, L.
dc.contributor.authorAdelman, J.
dc.contributor.authorAdersberger, M.
dc.contributor.authorAdiguzel, A.
dc.contributor.authorAdye, T.
dc.contributor.authoret al.
dc.date.issued2019
dc.description.abstractThe top quark mass is measured using a template method in the tt¯→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 tt¯→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 mtop=172.08±0.39(stat)±0.82(syst) GeV. A combination with previous ATLAS mtop measurements gives mtop=172.69±0.25(stat)±0.41(syst) GeV.
dc.description.statementofresponsibilityM. Aaboud ... D. Duvnjak ... P. Jackson ... J.L. Oliver ... A. Petridis ... A. Qureshi ... A.S. Sharma ... M.J. White ... et al. [The ATLAS Collaboration]
dc.identifier.citationEuropean Physical Journal C, 2019; 79(4):290-1-290-51
dc.identifier.doi10.1140/epjc/s10052-019-6757-9
dc.identifier.issn1434-6044
dc.identifier.issn1434-6052
dc.identifier.orcidJackson, P. [0000-0002-0847-402X]
dc.identifier.orcidWhite, M. [0000-0001-5474-4580]
dc.identifier.urihttp://hdl.handle.net/2440/123498
dc.language.isoen
dc.publisherSpringer
dc.relation.grantARC
dc.rights© CERN for the benefit of the ATLAS collaboration 2019. Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Funded by SCOAP³
dc.source.urihttps://doi.org/10.1140/epjc/s10052-019-6757-9
dc.titleMeasurement of the top quark mass in the tt¯ → lepton+jets channel from √s = 8 TeV ATLAS data and combination with previous results
dc.title.alternativeMeasurement of the top quark mass in the t(t)over-bar -> lepton plus jets channel from root s=8 TeV ATLAS data and combination with previous results
dc.typeJournal article
pubs.publication-statusPublished

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