Search for New Physics in Top Quark Production in Dilepton Final States in Proton-Proton Collisions at √s = 13 TeV

European Physical Journal C 2019
Viesturs Veckalns, et al 100

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.

DOI
10.1140/epjc/s10052-019-7387-y
Hyperlink
https://link.springer.com/article/10.1140%2Fepjc%2Fs10052-019-7387-y

Veckalns, V., 100, e. Search for New Physics in Top Quark Production in Dilepton Final States in Proton-Proton Collisions at √s = 13 TeV. European Physical Journal C, 2019, Vol. 79, No. 11, pp.1-10. ISSN 1434-6044. e-ISSN 1434-6052. Available from: doi:10.1140/epjc/s10052-019-7387-y

Publication language
English (en)