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Title
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Search for physics beyond the standard model in top quark production with additional leptons in the context of effective field theory
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Author
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Institution/Organisation
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CMS Collaboration
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Abstract
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| A search for new physics in top quark production with additional final-state leptons is performed using data collected by the CMS experiment in proton-proton collisions at root s = 13TeV at the LHC during 2016-2018. The data set corresponds to an integrated luminosity of 138 fb(-1). Using the framework of effective field theory (EFT), potential new physics effects are parametrized in terms of 26 dimension-six EFT operators. The impacts of EFT operators are incorporated through the event-level reweighting of Monte Carlo simulations, which allows for detector-level predictions. The events are divided into several categories based on lepton multiplicity, total lepton charge, jet multiplicity, and b-tagged jet multiplicity. Kinematic variables corresponding to the transverse momentum (pT) of the leading pair of leptons and/or jets as well as the pT of on-shell Z bosons are used to extract the 95% confidence intervals of the 26 Wilson coefficients corresponding to these EFT operators. No significant deviation with respect to the standard model prediction is found. |
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Language
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English
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Source (journal)
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Journal of high energy physics. - Bristol
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Publication
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Bristol
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2023
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ISSN
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1126-6708
1029-8479
[online]
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DOI
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10.1007/JHEP12(2023)068
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Volume/pages
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12
(2023)
, p. 1-58
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Article Reference
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68
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ISI
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001132432200001
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Medium
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E-only publicatie
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Full text (Publisher's DOI)
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Full text (open access)
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