Measurement of the top-quark mass in the $t\bar{t} \rightarrow \text{dilepton}$ channel with a template method, using the full Run 2 dataset in ATLAS

This document describes the top-quark mass measurement in top-quark pair production using the full Run~2 dataset collected with the ATLAS experiment at $\sqrt{s}$=13~TeV, which amounts to 139~$\text{fb}^{-1}$. The measurement is carried out in the dilepton channel. The top-quark mass is extracted fr...

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Detalles Bibliográficos
Autor principal: Rafanoharana, Dimbiniaina
Lenguaje:eng
Publicado: 2022
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/2826420
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author Rafanoharana, Dimbiniaina
author_facet Rafanoharana, Dimbiniaina
author_sort Rafanoharana, Dimbiniaina
collection CERN
description This document describes the top-quark mass measurement in top-quark pair production using the full Run~2 dataset collected with the ATLAS experiment at $\sqrt{s}$=13~TeV, which amounts to 139~$\text{fb}^{-1}$. The measurement is carried out in the dilepton channel. The top-quark mass is extracted from the observed invariant mass distribution of the pair of a charged-lepton and a $b$-tagged jet with the largest transverse momentum using an unbinned maximum-likelihood fit. The result is $m_{\text{top}} =$ 172.63 $\pm$ 0.20 (stat) $\pm$ 0.67 (syst) $\pm$ 0.37 (recoil) GeV. The statistical precision in the systematic uncertainty is 0.06 GeV.
id cern-2826420
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2022
record_format invenio
spelling cern-28264202022-09-07T18:33:15Zhttp://cds.cern.ch/record/2826420engRafanoharana, DimbiniainaMeasurement of the top-quark mass in the $t\bar{t} \rightarrow \text{dilepton}$ channel with a template method, using the full Run 2 dataset in ATLASParticle Physics - ExperimentThis document describes the top-quark mass measurement in top-quark pair production using the full Run~2 dataset collected with the ATLAS experiment at $\sqrt{s}$=13~TeV, which amounts to 139~$\text{fb}^{-1}$. The measurement is carried out in the dilepton channel. The top-quark mass is extracted from the observed invariant mass distribution of the pair of a charged-lepton and a $b$-tagged jet with the largest transverse momentum using an unbinned maximum-likelihood fit. The result is $m_{\text{top}} =$ 172.63 $\pm$ 0.20 (stat) $\pm$ 0.67 (syst) $\pm$ 0.37 (recoil) GeV. The statistical precision in the systematic uncertainty is 0.06 GeV.ATL-PHYS-SLIDE-2022-426oai:cds.cern.ch:28264202022-09-07
spellingShingle Particle Physics - Experiment
Rafanoharana, Dimbiniaina
Measurement of the top-quark mass in the $t\bar{t} \rightarrow \text{dilepton}$ channel with a template method, using the full Run 2 dataset in ATLAS
title Measurement of the top-quark mass in the $t\bar{t} \rightarrow \text{dilepton}$ channel with a template method, using the full Run 2 dataset in ATLAS
title_full Measurement of the top-quark mass in the $t\bar{t} \rightarrow \text{dilepton}$ channel with a template method, using the full Run 2 dataset in ATLAS
title_fullStr Measurement of the top-quark mass in the $t\bar{t} \rightarrow \text{dilepton}$ channel with a template method, using the full Run 2 dataset in ATLAS
title_full_unstemmed Measurement of the top-quark mass in the $t\bar{t} \rightarrow \text{dilepton}$ channel with a template method, using the full Run 2 dataset in ATLAS
title_short Measurement of the top-quark mass in the $t\bar{t} \rightarrow \text{dilepton}$ channel with a template method, using the full Run 2 dataset in ATLAS
title_sort measurement of the top-quark mass in the $t\bar{t} \rightarrow \text{dilepton}$ channel with a template method, using the full run 2 dataset in atlas
topic Particle Physics - Experiment
url http://cds.cern.ch/record/2826420
work_keys_str_mv AT rafanoharanadimbiniaina measurementofthetopquarkmassinthetbartrightarrowtextdileptonchannelwithatemplatemethodusingthefullrun2datasetinatlas

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