Search for new physics in top quark production in dilepton final states in proton-proton collisions at √s=13TeV
Authors
Sirunyan, A MTumasyan, A
Adam, W
Ambrogi, F
Adžić, Petar
Ćirković, Predrag

Devetak, Damir

Đorđević, Miloš

Milenović, Predrag
Milošević, Jovan

Contributors
CMS CollaborationCMS Collaboration (ukupan broj autora: 2293)
Article (Published version)
Metadata
Show full item recordAbstract
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 t W from t t ¯ events and exploiting the specific sensitivity of the t W process to new physics. © 2019, CERN for the benefit of the CMS collaboration.
Source:
European Physical Journal C, 2019, 79, 11
DOI: 10.1140/epjc/s10052-019-7387-y
ISSN: 1434-6044