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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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Autor principal: Wong, Vincent Wai Sum
Lenguaje:eng
Publicado: 2020
Materias:
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