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dc.contributor.authorCatastini, Pierluigi
dc.contributor.authorClark, Brian Lee
dc.contributor.authorFranklin, Melissa
dc.contributor.authorHuth, John
dc.contributor.authorIppolito, Valerio
dc.contributor.authorLopez Mateos, David
dc.contributor.authorMercurio, Kevin
dc.contributor.authorMorii, Masahiro
dc.contributor.authorSpearman, William
dc.contributor.authorSun, Siyuan
dc.contributor.authorTolley, Emma
dc.contributor.authorYen, Andy
dc.contributor.authorZambito, Stefano
dc.date.accessioned2017-07-20T19:00:31Z
dc.date.issued2015
dc.identifier.citationATLAS Collaboration. 2015. “Measurement of the top quark mass in the tt¯→ lepton+jets tt¯→ lepton+jets and tt¯→ dilepton tt¯→ dilepton channels using √s=7 TeV ATLAS data.” The European Physical Journal C 75 (7) (July). doi:10.1140/epjc/s10052-015-3544-0.en_US
dc.identifier.issn1434-6044en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:33470150
dc.description.abstractThe top quark mass was measured in the channels tt → lepton+jets and tt → dilepton (lepton = e, μ) based on ATLAS data recorded in 2011. The data were taken at the LHC with a proton–proton centre-of-mass energy of √s = 7 TeV and correspond to an integrated luminosity of 4.6 fb−1. The tt → lepton+jets analysis uses a three-dimensional template technique which determines the top quark mass together with a global jet energy scale factor (JSF), and a relative b-to-light-jet energy scale factor (bJSF), where the terms b-jets and light-jets refer to jets originating from b-quarks and u, d, c, s-quarks or gluons, respectively. The analysis of the tt → dilepton channel exploits a one-dimensional template method using the mℓb observable, defined as the average invariant mass of the two lepton+b-jet pairs in each event. The top quark mass is measured to be 172.33 ± 0.75(stat + JSF + bJSF) ± 1.02(syst) GeV, and 173.79 ± 0.54(stat) ± 1.30(syst) GeV in the tt → lepton+jets and tt → dilepton channels, respectively. The combination of the two results yields mtop = 172.99 ± 0.48(stat) ± 0.78(syst) GeV, with a total uncertainty of 0.91 GeV.en_US
dc.description.sponsorshipPhysicsen_US
dc.language.isoen_USen_US
dc.publisherSpringer Natureen_US
dc.relation.isversionofdoi:10.1140/epjc/s10052-015-3544-0en_US
dash.licenseLAA
dc.titleMeasurement of the top quark mass in the tt¯→ lepton+jets tt¯→ lepton+jets and tt¯→ dilepton tt¯→ dilepton channels using √s=7 TeV ATLAS dataen_US
dc.typeJournal Articleen_US
dc.description.versionVersion of Recorden_US
dc.relation.journalThe European Physical Journal Cen_US
dash.depositing.authorFranklin, Melissa
dc.date.available2017-07-20T19:00:31Z
dc.identifier.doi10.1140/epjc/s10052-015-3544-0*
dash.authorsorderedfalse
dash.identifier.orcid0000-0002-3377-8164en_US
dash.contributor.affiliatedClark, Brian Lee
dash.contributor.affiliatedSun, Siyuan
dash.contributor.affiliatedLopez Mateos, David
dash.contributor.affiliatedMercurio, Kevin
dash.contributor.affiliatedSpearman, William
dash.contributor.affiliatedZambito, Stefano
dash.contributor.affiliatedIppolito, Valerio
dash.contributor.affiliatedTolley, Emma
dash.contributor.affiliatedYen, Andy
dash.contributor.affiliatedHuth, John
dash.contributor.affiliatedFranklin, Melissa
dash.contributor.affiliatedMorii, Masahiro
dc.identifier.orcid0000-0002-3377-8164


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