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Top Quark Properties from ATLAS

Results of analyses of top quark properties measured at the LHC are presented on behalf of the ATLAS Collaboration. Particular attention is given to three recent results. In an analysis of the charge asymmetry in $t\bar{t}$ production evidence of a non-zero asymmetry is seen for the first time. Seco...

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Autor principal: Young, Christopher
Lenguaje:eng
Publicado: 2020
Materias:
Acceso en línea:https://dx.doi.org/10.22323/1.382.0071
http://cds.cern.ch/record/2730781
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author Young, Christopher
author_facet Young, Christopher
author_sort Young, Christopher
collection CERN
description Results of analyses of top quark properties measured at the LHC are presented on behalf of the ATLAS Collaboration. Particular attention is given to three recent results. In an analysis of the charge asymmetry in $t\bar{t}$ production evidence of a non-zero asymmetry is seen for the first time. Secondly, the measurement of $t\bar{t}$ spin correlations is discussed. Finally, using $t\bar{t}$ events, lepton flavour universality is tested through a measurement of the ratio of the rates of decay of $W$-bosons to $\tau$-leptons and muons, $R(\tau/\mu)=B(W\rightarrow\tau\nu_\tau)/B(W\rightarrow \mu\nu_\mu)$.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2020
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spelling cern-27307812021-10-11T10:04:02Zdoi:10.22323/1.382.0071http://cds.cern.ch/record/2730781engYoung, ChristopherTop Quark Properties from ATLASParticle Physics - ExperimentResults of analyses of top quark properties measured at the LHC are presented on behalf of the ATLAS Collaboration. Particular attention is given to three recent results. In an analysis of the charge asymmetry in $t\bar{t}$ production evidence of a non-zero asymmetry is seen for the first time. Secondly, the measurement of $t\bar{t}$ spin correlations is discussed. Finally, using $t\bar{t}$ events, lepton flavour universality is tested through a measurement of the ratio of the rates of decay of $W$-bosons to $\tau$-leptons and muons, $R(\tau/\mu)=B(W\rightarrow\tau\nu_\tau)/B(W\rightarrow \mu\nu_\mu)$.ATL-PHYS-PROC-2020-061oai:cds.cern.ch:27307812020-09-18
spellingShingle Particle Physics - Experiment
Young, Christopher
Top Quark Properties from ATLAS
title Top Quark Properties from ATLAS
title_full Top Quark Properties from ATLAS
title_fullStr Top Quark Properties from ATLAS
title_full_unstemmed Top Quark Properties from ATLAS
title_short Top Quark Properties from ATLAS
title_sort top quark properties from atlas
topic Particle Physics - Experiment
url https://dx.doi.org/10.22323/1.382.0071
http://cds.cern.ch/record/2730781
work_keys_str_mv AT youngchristopher topquarkpropertiesfromatlas