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Search for Scalar Leptoquark Pair Production Decaying into Top-Quarks and Leptons at $\sqrt{s}$ = 13 TeV with ATLAS detector
This poster presents a search for pair-produced scalar leptoquarks decaying to leptons and hadronic top quarks using 139 $\text{fb}^{-1}$ of data recorded by the ATLAS detector at $\sqrt{s}$ = 13 TeV. As well as being predicted by various extensions of the Standard Model to describe the similarity b...
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Lenguaje: | eng |
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2020
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Acceso en línea: | http://cds.cern.ch/record/2727476 |
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author | Wong, Vincent Wai Sum |
author_facet | Wong, Vincent Wai Sum |
author_sort | Wong, Vincent Wai Sum |
collection | CERN |
description | This poster presents a search for pair-produced scalar leptoquarks decaying to leptons and hadronic top quarks using 139 $\text{fb}^{-1}$ of data recorded by the ATLAS detector at $\sqrt{s}$ = 13 TeV. As well as being predicted by various extensions of the Standard Model to describe the similarity between the quark and lepton sectors, leptoquarks provide a promising explanation for anomalies observed in both the lepton universality tests in B decays and muon anomalous magnetic moment measurement. Searches for pair-produced scalar leptoquarks decaying to electron-top or muon-top pairs have been performed in final states with exactly two leptons. A parameterized gradient boosted decision trees approach is used to suppress the standard model background. Improved exclusion limits are set on the leptoquark masses are set at 95% confidence level. |
id | cern-2727476 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2020 |
record_format | invenio |
spelling | cern-27274762021-11-23T14:31:03Zhttp://cds.cern.ch/record/2727476engWong, Vincent Wai SumSearch for Scalar Leptoquark Pair Production Decaying into Top-Quarks and Leptons at $\sqrt{s}$ = 13 TeV with ATLAS detectorParticle Physics - ExperimentThis poster presents a search for pair-produced scalar leptoquarks decaying to leptons and hadronic top quarks using 139 $\text{fb}^{-1}$ of data recorded by the ATLAS detector at $\sqrt{s}$ = 13 TeV. As well as being predicted by various extensions of the Standard Model to describe the similarity between the quark and lepton sectors, leptoquarks provide a promising explanation for anomalies observed in both the lepton universality tests in B decays and muon anomalous magnetic moment measurement. Searches for pair-produced scalar leptoquarks decaying to electron-top or muon-top pairs have been performed in final states with exactly two leptons. A parameterized gradient boosted decision trees approach is used to suppress the standard model background. Improved exclusion limits are set on the leptoquark masses are set at 95% confidence level.ATL-PHYS-SLIDE-2020-276oai:cds.cern.ch:27274762020-08-07 |
spellingShingle | Particle Physics - Experiment Wong, Vincent Wai Sum Search for Scalar Leptoquark Pair Production Decaying into Top-Quarks and Leptons at $\sqrt{s}$ = 13 TeV with ATLAS detector |
title | Search for Scalar Leptoquark Pair Production Decaying into Top-Quarks and Leptons at $\sqrt{s}$ = 13 TeV with ATLAS detector |
title_full | Search for Scalar Leptoquark Pair Production Decaying into Top-Quarks and Leptons at $\sqrt{s}$ = 13 TeV with ATLAS detector |
title_fullStr | Search for Scalar Leptoquark Pair Production Decaying into Top-Quarks and Leptons at $\sqrt{s}$ = 13 TeV with ATLAS detector |
title_full_unstemmed | Search for Scalar Leptoquark Pair Production Decaying into Top-Quarks and Leptons at $\sqrt{s}$ = 13 TeV with ATLAS detector |
title_short | Search for Scalar Leptoquark Pair Production Decaying into Top-Quarks and Leptons at $\sqrt{s}$ = 13 TeV with ATLAS detector |
title_sort | search for scalar leptoquark pair production decaying into top-quarks and leptons at $\sqrt{s}$ = 13 tev with atlas detector |
topic | Particle Physics - Experiment |
url | http://cds.cern.ch/record/2727476 |
work_keys_str_mv | AT wongvincentwaisum searchforscalarleptoquarkpairproductiondecayingintotopquarksandleptonsatsqrts13tevwithatlasdetector |