Charge asymmetry in top-pair production with the ATLAS detector

Measurement of the inclusive and differential top-quark charge asymmetry is carried out using full Run2 data from proton-proton collisions at center-of-mass energy of $13$ TeV collected by the ATLAS detector. Single-lepton and dilepton $t\bar t$ decay channel are combined. Distorting detector effect...

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Detalles Bibliográficos
Autor principal: Eckerova, Barbora
Lenguaje:eng
Publicado: 2022
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/2842593
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author Eckerova, Barbora
author_facet Eckerova, Barbora
author_sort Eckerova, Barbora
collection CERN
description Measurement of the inclusive and differential top-quark charge asymmetry is carried out using full Run2 data from proton-proton collisions at center-of-mass energy of $13$ TeV collected by the ATLAS detector. Single-lepton and dilepton $t\bar t$ decay channel are combined. Distorting detector effects are removed using the fully Bayesian unfolding. In the dilepton decay channel, the leptonic charge asymmetry is determined. Results from the measurements are compared with the Standard Model prediction. The excess of charge asymmetry from zero charge-asymmetry hypothesis at the level of $4.7$ standard deviations is observed.
id cern-2842593
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2022
record_format invenio
spelling cern-28425932023-06-29T04:29:15Zhttp://cds.cern.ch/record/2842593engEckerova, BarboraCharge asymmetry in top-pair production with the ATLAS detectorParticle Physics - ExperimentMeasurement of the inclusive and differential top-quark charge asymmetry is carried out using full Run2 data from proton-proton collisions at center-of-mass energy of $13$ TeV collected by the ATLAS detector. Single-lepton and dilepton $t\bar t$ decay channel are combined. Distorting detector effects are removed using the fully Bayesian unfolding. In the dilepton decay channel, the leptonic charge asymmetry is determined. Results from the measurements are compared with the Standard Model prediction. The excess of charge asymmetry from zero charge-asymmetry hypothesis at the level of $4.7$ standard deviations is observed.Measurement of the inclusive and differential top-quark charge asymmetry is carried out using full Run 2 data from proton-proton collisions at a center-of-mass energy of $13$ TeV collected by the ATLAS detector. The single-lepton and dilepton $t\bar{t}$ decay channels are combined. Distorting detector effects are removed using fully Bayesian unfolding. In the dilepton decay channel, the leptonic charge asymmetry is determined. Results from the measurements are compared with the Standard Model prediction. The excess of charge asymmetry from zero charge-asymmetry hypothesis at the level of $4.7$ standard deviations is observed.arXiv:2212.00161ATL-PHYS-PROC-2022-117oai:cds.cern.ch:28425932022-11-30
spellingShingle Particle Physics - Experiment
Eckerova, Barbora
Charge asymmetry in top-pair production with the ATLAS detector
title Charge asymmetry in top-pair production with the ATLAS detector
title_full Charge asymmetry in top-pair production with the ATLAS detector
title_fullStr Charge asymmetry in top-pair production with the ATLAS detector
title_full_unstemmed Charge asymmetry in top-pair production with the ATLAS detector
title_short Charge asymmetry in top-pair production with the ATLAS detector
title_sort charge asymmetry in top-pair production with the atlas detector
topic Particle Physics - Experiment
url http://cds.cern.ch/record/2842593
work_keys_str_mv AT eckerovabarbora chargeasymmetryintoppairproductionwiththeatlasdetector

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