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Title
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Search for new physics in top quark production in dilepton final states in proton-proton collisions at root s=13 TeV
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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 is performed in proton-proton collisions at 13 TeV. The data set corresponds to an integrated luminosity of 35.9 fb(-1) collected in 2016 with the CMS detector. Events with two opposite-sign isolated leptons (electrons or muons), and b quark jets in the final state are selected. The search is sensitive to new physics in top quark pair production and in single top quark production in association with a W boson. No significant deviation from the standard model expectation is observed. Results are interpreted in the framework of effective field theory and constraints on the relevant effective couplings are set, one at a time, using a dedicated multivariate analysis. This analysis differs from previous searches for new physics in the top quark sector by explicitly separating tW from t (t) over bar events and exploiting the specific sensitivity of the tW process to new physics. |
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Language
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English
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Source (journal)
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European physical journal : C : particles and fields. - Berlin
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Publication
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Berlin
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2019
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ISSN
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1434-6044
1434-6052
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DOI
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10.1140/EPJC/S10052-019-7387-Y
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Volume/pages
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79
:11
(2019)
, 29 p.
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Article Reference
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886
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ISI
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000493654200001
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Pubmed ID
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31764915
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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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