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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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Detalles Bibliográficos
Autor principal: Wong, Vincent Wai Sum
Lenguaje:eng
Publicado: 2020
Materias:
Acceso en línea:http://cds.cern.ch/record/2727476
Descripción
Sumario: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.