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Recent ATLAS results on inclusive and differential top quark production

<!--HTML--><p>Recent results from measurements of top quark pair and single top production by the ATLAS experiment are presented. Final inclusive and differential results from Run 1 are shown along with a first look at the 13 TeV data. Measurements of single top quark production in all t...

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Autor principal: Lister, Alison
Lenguaje:eng
Publicado: 2016
Materias:
Acceso en línea:http://cds.cern.ch/record/2197565
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author Lister, Alison
author_facet Lister, Alison
author_sort Lister, Alison
collection CERN
description <!--HTML--><p>Recent results from measurements of top quark pair and single top production by the ATLAS experiment are presented. Final inclusive and differential results from Run 1 are shown along with a first look at the 13 TeV data. Measurements of single top quark production in all three possible modes have been performed at ATLAS at 8 TeV. The first 13 TeV data was used to measure the t-channel production cross section, showing good agreement with the prediction. The Run 1 data was used to measure particle and parton level differential cross sections in top-pair events over a wide range of phase-space up to high masses, high momentum or high jet multiplicity. These results are compared to state-of-the-art NLO Monte Carlo predictions. A number of parton level results are compared to recent NNLO differential distributions, which show good agreement with the data. Results in both the lepton-plus-jets and dilepton channels are shown. The 2015 data at 13 TeV has allowed us to measure the additional jet multiplicity in dilepton events at a new centre-of-mass energy. The Run 2 data has also allowed measurements of the production of top quark pairs in association with an additional weak boson. Finally, a measurement of the top pair production cross section in events with one electron and one muon is presented; its precision is on a par with that of the NNLO+NNLL calculations.</p>
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institution Organización Europea para la Investigación Nuclear
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spelling cern-21975652022-11-02T22:33:08Zhttp://cds.cern.ch/record/2197565engLister, AlisonRecent ATLAS results on inclusive and differential top quark productionRecent ATLAS results on inclusive and differential top quark productionLHC Seminar<!--HTML--><p>Recent results from measurements of top quark pair and single top production by the ATLAS experiment are presented. Final inclusive and differential results from Run 1 are shown along with a first look at the 13 TeV data. Measurements of single top quark production in all three possible modes have been performed at ATLAS at 8 TeV. The first 13 TeV data was used to measure the t-channel production cross section, showing good agreement with the prediction. The Run 1 data was used to measure particle and parton level differential cross sections in top-pair events over a wide range of phase-space up to high masses, high momentum or high jet multiplicity. These results are compared to state-of-the-art NLO Monte Carlo predictions. A number of parton level results are compared to recent NNLO differential distributions, which show good agreement with the data. Results in both the lepton-plus-jets and dilepton channels are shown. The 2015 data at 13 TeV has allowed us to measure the additional jet multiplicity in dilepton events at a new centre-of-mass energy. The Run 2 data has also allowed measurements of the production of top quark pairs in association with an additional weak boson. Finally, a measurement of the top pair production cross section in events with one electron and one muon is presented; its precision is on a par with that of the NNLO+NNLL calculations.</p>oai:cds.cern.ch:21975652016
spellingShingle LHC Seminar
Lister, Alison
Recent ATLAS results on inclusive and differential top quark production
title Recent ATLAS results on inclusive and differential top quark production
title_full Recent ATLAS results on inclusive and differential top quark production
title_fullStr Recent ATLAS results on inclusive and differential top quark production
title_full_unstemmed Recent ATLAS results on inclusive and differential top quark production
title_short Recent ATLAS results on inclusive and differential top quark production
title_sort recent atlas results on inclusive and differential top quark production
topic LHC Seminar
url http://cds.cern.ch/record/2197565
work_keys_str_mv AT listeralison recentatlasresultsoninclusiveanddifferentialtopquarkproduction