Measurement of the Top Quark Mass in Dileptonic Top Quark Pair Decays with $\sqrt{s} = 7$ TeV ATLAS Data

The top quark mass in dileptonic top quark pair decays is measured using $4.7~\mathrm{fb}^{-1}$ of proton-proton collision data recorded at the centre of mass energy $\sqrt{s}=7~\mathrm{TeV}$ by the ATLAS experiment at the LHC in 2011. The event topology is characterised by the presence of two charg...

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Detalles Bibliográficos
Autor principal: Maier, A A
Lenguaje:eng
Publicado: 2013
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.3204/DESY-PROC-2014-02/58
http://cds.cern.ch/record/1628720
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author Maier, A A
author_facet Maier, A A
author_sort Maier, A A
collection CERN
description The top quark mass in dileptonic top quark pair decays is measured using $4.7~\mathrm{fb}^{-1}$ of proton-proton collision data recorded at the centre of mass energy $\sqrt{s}=7~\mathrm{TeV}$ by the ATLAS experiment at the LHC in 2011. The event topology is characterised by the presence of two charged leptons, at least two neutrinos and several jets, two of which originate from bottom quarks. Using the template method and the m$_{\ell b}$ observable, defined as the average invariant mass of the two lepton plus $b$-jet pairs in each event, the top quark mass is measured to be $173.09 \pm 0.64_\mathrm{stat} \pm 1.50_\mathrm{syst}~\mathrm{GeV}$.
id cern-1628720
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2013
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spelling cern-16287202019-09-30T06:29:59Zdoi:10.3204/DESY-PROC-2014-02/58http://cds.cern.ch/record/1628720engMaier, A AMeasurement of the Top Quark Mass in Dileptonic Top Quark Pair Decays with $\sqrt{s} = 7$ TeV ATLAS DataDetectors and Experimental TechniquesThe top quark mass in dileptonic top quark pair decays is measured using $4.7~\mathrm{fb}^{-1}$ of proton-proton collision data recorded at the centre of mass energy $\sqrt{s}=7~\mathrm{TeV}$ by the ATLAS experiment at the LHC in 2011. The event topology is characterised by the presence of two charged leptons, at least two neutrinos and several jets, two of which originate from bottom quarks. Using the template method and the m$_{\ell b}$ observable, defined as the average invariant mass of the two lepton plus $b$-jet pairs in each event, the top quark mass is measured to be $173.09 \pm 0.64_\mathrm{stat} \pm 1.50_\mathrm{syst}~\mathrm{GeV}$.ATL-PHYS-PROC-2013-303oai:cds.cern.ch:16287202013-11-14
spellingShingle Detectors and Experimental Techniques
Maier, A A
Measurement of the Top Quark Mass in Dileptonic Top Quark Pair Decays with $\sqrt{s} = 7$ TeV ATLAS Data
title Measurement of the Top Quark Mass in Dileptonic Top Quark Pair Decays with $\sqrt{s} = 7$ TeV ATLAS Data
title_full Measurement of the Top Quark Mass in Dileptonic Top Quark Pair Decays with $\sqrt{s} = 7$ TeV ATLAS Data
title_fullStr Measurement of the Top Quark Mass in Dileptonic Top Quark Pair Decays with $\sqrt{s} = 7$ TeV ATLAS Data
title_full_unstemmed Measurement of the Top Quark Mass in Dileptonic Top Quark Pair Decays with $\sqrt{s} = 7$ TeV ATLAS Data
title_short Measurement of the Top Quark Mass in Dileptonic Top Quark Pair Decays with $\sqrt{s} = 7$ TeV ATLAS Data
title_sort measurement of the top quark mass in dileptonic top quark pair decays with $\sqrt{s} = 7$ tev atlas data
topic Detectors and Experimental Techniques
url https://dx.doi.org/10.3204/DESY-PROC-2014-02/58
http://cds.cern.ch/record/1628720
work_keys_str_mv AT maieraa measurementofthetopquarkmassindileptonictopquarkpairdecayswithsqrts7tevatlasdata

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