Title
Search for new physics in top quark production in dilepton final states in proton-proton collisions at √s=13TeV
Date Issued
01 November 2019
Access level
open access
Resource Type
Controlled Vocabulary for Resource Type Genres::texto::revista::artículo::artículo original
Author(s)
Tumasyan, A.
Mossolov, V.
Madlener, T.
Asilar, E.
Spitzbart, D.
Lauwers, J.
Gonzalez, J. Suarez
Dragicevic, M.
Ambrogi, F.
Jeitler, M.
Jeitler, M.
Sirunyan, A. M.
Chekhovsky, V.
Frühwirth, R.
Frühwirth, R.
Van Mechelen, P.
Mikulec, I.
Lontkovskyi, D.
Liko, D.
Rohringer, H.
Van Haevermaet, H.
Di Croce, D.
D'Hondt, J.
Deroover, K.
Erö, J.
Wittmann, J.
Adam, W.
Del Valle, A. Escalante
Van Remortel, N.
Janssen, X.
De Wolf, E. A.
Schöfbeck, R.
Ghete, V. M.
Flechl, M.
Hrubec, J.
Abu Zeid, S.
Blekman, F.
Brandstetter, J.
Krammer, N.
Zarucki, M.
Pieters, M.
Rad, N.
Waltenberger, W.
Spanring, M.
De Clercq, J.
Bergauer, T.
Flouris, G.
Schieck, J.
Schieck, J.
Wulz, C. E.
Wulz, C. E.
Lelek, A.
Krätschmer, I.
A. Alikhanian Yerevan Institute of Physics
Belarusian State University
Austrian Academy of Sciences
Austrian Academy of Sciences
Austrian Academy of Sciences
University of Antwerp
Belarusian State University
Austrian Academy of Sciences
Austrian Academy of Sciences
Austrian Academy of Sciences
TU Wien
A. Alikhanian Yerevan Institute of Physics
Belarusian State University
Austrian Academy of Sciences
TU Wien
University of Antwerp
Austrian Academy of Sciences
Vrije Universiteit Brussel
Austrian Academy of Sciences
Austrian Academy of Sciences
University of Antwerp
University of Antwerp
Vrije Universiteit Brussel
Vrije Universiteit Brussel
Austrian Academy of Sciences
Austrian Academy of Sciences
Austrian Academy of Sciences
Austrian Academy of Sciences
University of Antwerp
University of Antwerp
University of Antwerp
Austrian Academy of Sciences
Austrian Academy of Sciences
Austrian Academy of Sciences
Austrian Academy of Sciences
Vrije Universiteit Brussel
Vrije Universiteit Brussel
Austrian Academy of Sciences
Austrian Academy of Sciences
Austrian Academy of Sciences
University of Antwerp
Austrian Academy of Sciences
Austrian Academy of Sciences
Austrian Academy of Sciences
Vrije Universiteit Brussel
Austrian Academy of Sciences
Vrije Universiteit Brussel
Austrian Academy of Sciences
TU Wien
Austrian Academy of Sciences
TU Wien
University of Antwerp
Austrian Academy of Sciences
Abstract
<p>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.</p>
Volume
79
Issue
11
Number
886
Language
English
Publication version
Version of Record
Scopus EID
2-s2.0-85074277455
Source
European Physical Journal C
ISSN of the container
1434-6044