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Search for new physics in top quark production in dilepton final states in proton-proton collisions at 𝑠√=13TeV
Sirunyan, A. M. Sanders, Stephen J. CMS Collaboration
Sirunyan, A. M.
Sanders, Stephen J.
CMS Collaboration
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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.
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This work is licensed under a Creative Commons Attribution 4.0 International License.
Date
2019-11-01
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SpringerOpen
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Sirunyan, A.M., Tumasyan, A., Adam, W. et al. Search for new physics in top quark production in dilepton final states in proton-proton collisions at 𝑠√=13TeV. Eur. Phys. J. C 79, 886 (2019). https://doi.org/10.1140/epjc/s10052-019-7387-y