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Differential measurement of $\mathrm{t}\bar{\mathrm{t}}\mathrm{Z}$ production at $\sqrt{s}=13\,\mathrm{TeV}$ with the CMS experiment

Measurements of top quark pair production in association with a Z boson ($\mathrm{t}\bar{\mathrm{t}}\mathrm{Z}$) provide direct tests of the coupling of top quarks and Z bosons, as well as the description of the production mechanism in QCD. The measurements can be used to constrain possible contribu...

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Autor principal: Knolle, Joscha
Lenguaje:eng
Publicado: 2019
Materias:
Acceso en línea:http://cds.cern.ch/record/2703395
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author Knolle, Joscha
author_facet Knolle, Joscha
author_sort Knolle, Joscha
collection CERN
description Measurements of top quark pair production in association with a Z boson ($\mathrm{t}\bar{\mathrm{t}}\mathrm{Z}$) provide direct tests of the coupling of top quarks and Z bosons, as well as the description of the production mechanism in QCD. The measurements can be used to constrain possible contributions from anomalous top quark-Z boson couplings. A first differential $\mathrm{t}\bar{\mathrm{t}}\mathrm{Z}$ production measurement has been performed by the CMS experiment using events with three leptons collected in 2016 & 2017. The differential cross sections are reported as functions of the Z boson transverse momentum, and of the angle between the Z boson and one of its decay leptons, boosted to the Z boson's rest frame. The results are compared to state-of-the-art theory predictions.
id cern-2703395
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2019
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spelling cern-27033952021-05-24T02:09:29Zhttp://cds.cern.ch/record/2703395engKnolle, JoschaDifferential measurement of $\mathrm{t}\bar{\mathrm{t}}\mathrm{Z}$ production at $\sqrt{s}=13\,\mathrm{TeV}$ with the CMS experimenthep-exParticle Physics - ExperimentMeasurements of top quark pair production in association with a Z boson ($\mathrm{t}\bar{\mathrm{t}}\mathrm{Z}$) provide direct tests of the coupling of top quarks and Z bosons, as well as the description of the production mechanism in QCD. The measurements can be used to constrain possible contributions from anomalous top quark-Z boson couplings. A first differential $\mathrm{t}\bar{\mathrm{t}}\mathrm{Z}$ production measurement has been performed by the CMS experiment using events with three leptons collected in 2016 & 2017. The differential cross sections are reported as functions of the Z boson transverse momentum, and of the angle between the Z boson and one of its decay leptons, boosted to the Z boson's rest frame. The results are compared to state-of-the-art theory predictions.arXiv:1911.12714oai:cds.cern.ch:27033952019-11-28
spellingShingle hep-ex
Particle Physics - Experiment
Knolle, Joscha
Differential measurement of $\mathrm{t}\bar{\mathrm{t}}\mathrm{Z}$ production at $\sqrt{s}=13\,\mathrm{TeV}$ with the CMS experiment
title Differential measurement of $\mathrm{t}\bar{\mathrm{t}}\mathrm{Z}$ production at $\sqrt{s}=13\,\mathrm{TeV}$ with the CMS experiment
title_full Differential measurement of $\mathrm{t}\bar{\mathrm{t}}\mathrm{Z}$ production at $\sqrt{s}=13\,\mathrm{TeV}$ with the CMS experiment
title_fullStr Differential measurement of $\mathrm{t}\bar{\mathrm{t}}\mathrm{Z}$ production at $\sqrt{s}=13\,\mathrm{TeV}$ with the CMS experiment
title_full_unstemmed Differential measurement of $\mathrm{t}\bar{\mathrm{t}}\mathrm{Z}$ production at $\sqrt{s}=13\,\mathrm{TeV}$ with the CMS experiment
title_short Differential measurement of $\mathrm{t}\bar{\mathrm{t}}\mathrm{Z}$ production at $\sqrt{s}=13\,\mathrm{TeV}$ with the CMS experiment
title_sort differential measurement of $\mathrm{t}\bar{\mathrm{t}}\mathrm{z}$ production at $\sqrt{s}=13\,\mathrm{tev}$ with the cms experiment
topic hep-ex
Particle Physics - Experiment
url http://cds.cern.ch/record/2703395
work_keys_str_mv AT knollejoscha differentialmeasurementofmathrmtbarmathrmtmathrmzproductionatsqrts13mathrmtevwiththecmsexperiment