Search for new physics in top quark production in dilepton final states in proton-proton collisions at √s=13TeV

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Date
2019-11Type
- Journal Article
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Cited 10 times in
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Cited 12 times in
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Abstract
A search for new physics in top quark production is performed in proton-proton collisions at 13TeV. The data set corresponds to an integrated luminosity of 35.9fb−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 tt¯ events and exploiting the specific sensitivity of the tW process to new physics. Show more
Permanent link
https://doi.org/10.3929/ethz-b-000376125Publication status
publishedExternal links
Journal / series
The European Physical Journal CVolume
Pages / Article No.
Publisher
SpringerOrganisational unit
03593 - Dissertori, Günther / Dissertori, Günther
03904 - Wallny, Rainer / Wallny, Rainer
08803 - Grab, Christoph (Tit.Prof.)
09631 - Shchutska, Lesya (ehemalig) / Shchutska, Lesya (former)
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Show all metadata
Citations
Cited 10 times in
Web of Science
Cited 12 times in
Scopus
ETH Bibliography
yes
Altmetrics