Measurement of the Top-Quark Mass in the Fully Hadronic Decay Channel from ATLAS Data at √s=7 TeV

dc.contributor.Scopus56366505900 (Lou, X)en_US
dc.contributor.VIAF250674117 (Izen, JM)en_US
dc.contributor.VIAF250674117 (Izen, JM)
dc.contributor.authorAad, G.en_US
dc.contributor.authorAbbott, B.en_US
dc.contributor.authorAbdallah, J.en_US
dc.contributor.authorAbdel Khalek, S.en_US
dc.contributor.authorAbdinov, O.en_US
dc.contributor.authorAben, R.en_US
dc.contributor.authorAbi, B.en_US
dc.contributor.authorIzen, Joseph M.en_US
dc.contributor.authorLeyton, Michaelen_US
dc.contributor.authorLou, Xinchouen_US
dc.contributor.authorNamasivayam, Harisankaren_US
dc.contributor.authorReeves, Kendallen_US
dc.contributor.authorATLAS Collaborationen_US
dc.contributor.utdAuthorIzen, Joseph M.en_US
dc.contributor.utdAuthorLeyton, Michaelen_US
dc.contributor.utdAuthorNamasivayam, Harisankaren_US
dc.contributor.utdAuthorReeves, Kendallen_US
dc.contributor.utdAuthorLou, Xinchouen_US
dc.date.accessioned2015-09-29T15:47:03Z
dc.date.available2015-09-29T15:47:03Z
dc.date.created2015-04-01en_US
dc.date.issued2015-04-01en_US
dc.description.abstractThe mass of the top quark is measured in a data set corresponding to 4.6 fb⁻¹ of proton-proton collisions with centre-of-mass energy √s = 7 TeV collected by the ATLAS detector at the LHC. Events consistent with hadronic decays of top-antitop quark pairs with at least six jets in the final state are selected. The substantial background from multijet production is modelled with data-driven methods that utilise the number of identified b-quark jets and the transverse momentum of the sixth leading jet, which have minimal correlation. The top-quark mass is obtained from template fits to the ratio of three-jet to dijet mass. The three-jet mass is calculated from the three jets produced in a top-quark decay. Using these three jets the dijet mass is obtained from the two jets produced in the W boson decay. The top-quark mass obtained from this fit is thus less sensitive to the uncertainty in the energy measurement of the jets. A binned likelihood fit yields a top-quark mass of m(t) = 175.1 ± 1.4 (stat.) ± 1.2 (syst.) GeV.en_US
dc.identifier.bibliographicCitationAad, G., B. Abbott, J. Abdallah, S. Abdel Khalek, et al. 2015. "Measurement of the top-quark mass in the fully hadronic decay channel from ATLAS data at √s=7 TeV." European Physical Journal C 75(4) doi:10.1140/epjc/s10052-015-3373-1.en_US
dc.identifier.issn1434-6044en_US
dc.identifier.issue4en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/4644
dc.identifier.volume75en_US
dc.language.isoen_USen_US
dc.publisherSpringeren_US
dc.relation.urihttp://dx.doi.org/10.1140/epjc/s10052-015-3373-1
dc.rightsCC BY 4.0 (Attribution)en_US
dc.rights©2015 CERN, for the ATLAS Collaborationen_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en_US
dc.sourceEuropean Physical Journal C
dc.subjectPartonsen_US
dc.subjectStandard Modelen_US
dc.subjectBosonsen_US
dc.subjectProton-proton interactionsen_US
dc.subjectQuarksen_US
dc.subjectJets (Nuclear physics)en_US
dc.subjectW bosonsen_US
dc.subjectTransverse momentumen_US
dc.titleMeasurement of the Top-Quark Mass in the Fully Hadronic Decay Channel from ATLAS Data at √s=7 TeVen_US
dc.typeTexten_US
dc.type.genreArticleen_US

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