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

CMS Collaboration

doi:10.1140/epjc/s10052-019-7387-y

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

CMS Collaboration

Yerevan Physics Institute
Institut für Hochenergiephysik
Vienna University of Technology
Institute for Nuclear Problems of Belarusian State University
University of Antwerp
Université Paris-Saclay
c/o DESY
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Vrjie Universiteit Brussel
Université Libre de Bruxelles
University of Kansas
Ghent University
University of Louvain
Centro Brasileiro de Pesquisas Fisicas
Rua São Francisco de Xavier
University of Campinas (UNICAMP)
Universidade Federal do Rio Grande do Sul
São Paulo State University
Federal University of ABC (UFABC)
Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences
University of Sofia
Beihang University
Institute of High Energy Physics, Chinese Academy of Sciences
Quaid-i-Azam University
European Organization for Nuclear Research
University of Chinese Academy of Sciences
State Key Laboratory of Nuclear Physics and Technology
Tsinghua University
University of Virginia
Universidad de Los Andes, Colombia
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split
Faculty of Science, University of Split
Ruđer Bošković Institute
Institute for Theoretical and Experimental Physics
University of Cyprus
Charles University
Joint Institute for Nuclear Research, Dubna
Escuela Politecnica Nacional
Universidad San Francisco de Quito
Egyptian Network of High Energy Physics
Cairo University
Zewail City of Science and Technology
British University in Egypt
Ain Shams University
National Institute of Chemical Physics and Biophysics, Tallinn
University of Helsinki
Helsinki Institute of Physics
LUT University
King Abdulaziz University
Université de Strasbourg
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Université Paris-Sud
IGFL, Université de Lyon, Université Lyon 1
Moscow State University
Georgian Technical University
Tbilisi State University
RWTH Aachen University
Saha Institute of Nuclear Physics
Universität Hamburg
Joint Faculty of the Brandenburg University of Technology Cottbus Senftenberg
Institute of Meteorology and Climate Research
NCSR Demokritos
University of Athens
National Technical University of Athens
University of Ioannina
University of Debrecen
Eötvös Loránd University
Wigner Research Centre for Physics
Institute of Nuclear Research ATOMKI
Indian Institute of Science
National Institute of Science Education and Research
IIT Bhubaneswar
Institute of Physics Bhubaneswar
Panjab University
Indian Institute of Science Education and Research (IISER)
University of Delhi
Rice University
Shoolini University
Tata Institute of Fundamental Research, Mumbai
Northwestern University
University of Visva-Bharati
Indian Institute of Technology Madras
Bhabha Atomic Research Centre
Fermi National Accelerator Laboratory
Institute for Research in Fundamental Sciences (IPM)
Isfahan University of Technology
Islamic Azad University, Science and Research Branch
University College Dublin
INFN Sezione di Bari
Università degli studi di Bari Aldo Moro
Politecnico di Bari
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University of Bologna
LNF-INFN
ENEA Climate Modeling and Impacts
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Università degli Studi di Catania
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University of Florence
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University of Milano-Bicocca
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Kyungpook National University
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Women and Infants Hospital of Rhode Island-Warren Alpert Medical School of Brown University
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Benemerita Universidad Autonoma de Puebla
Universidad Autónoma de San Luis Potosi
University of Auckland
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National Centre for Nuclear Research
University of Warsaw
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Lisboa
Institute for Nuclear Research of the Russian Academy of Sciences
National Research Nuclear University MEPhI
Petersburg Nuclear Physics Institute (PNPI)
St. Petersburg State Polytechnical University
University of Florida
Moscow Institute of Physics and Technology
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
CCLRC Rutherford Appleton Laboratory
University of Southampton
California Institute of Technology
Novosibirsk State University
Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
Kurchatov Institute
National Research Tomsk Polytechnic University
University of Belgrade
University of Belgrade
Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT)
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23 Citations (Scopus)

Résumé

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.

langue originale	Anglais
Numéro d'article	886
journal	European Physical Journal C
Volume	79
Numéro de publication	11
Les DOIs	https://doi.org/10.1140/epjc/s10052-019-7387-y
état	Publié - 1 nov. 2019
Modification externe	Oui

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10.1140/epjc/s10052-019-7387-y

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@article{32da3d255f0e4e1a9814513d4f68dd1e,

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

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 t W from t t ¯ events and exploiting the specific sensitivity of the t W process to new physics.",

author = "\{CMS Collaboration\} and Sirunyan, \{A. M.\} and A. Tumasyan and W. Adam and F. Ambrogi and E. Asilar and T. Bergauer and J. Brandstetter and M. Dragicevic and J. Er{\"o} and \{Del Valle\}, \{A. Escalante\} and M. Flechl and R. Fr{\"u}hwirth and Ghete, \{V. M.\} and J. Hrubec and M. Jeitler and N. Krammer and I. Kr{\"a}tschmer and D. Liko and T. Madlener and I. Mikulec and N. Rad and H. Rohringer and J. Schieck and R. Sch{\"o}fbeck and M. Spanring and D. Spitzbart and W. Waltenberger and J. Wittmann and Wulz, \{C. E.\} and M. Zarucki and V. Chekhovsky and V. Mossolov and Gonzalez, \{J. Suarez\} and \{De Wolf\}, \{E. A.\} and \{Di Croce\}, D. and X. Janssen and J. Lauwers and A. Lelek and M. Pieters and \{Van Haevermaet\}, H. and F. Beaudette and \{de Cassagnac\}, \{R. Granier\} and M. Nguyen and C. Ochando and P. Paganini and R. Salerno and A. Zabi and A. Zghiche and \{De Wit\}, A. and A. Cappati",

note = "Publisher Copyright: {\textcopyright} 2019, CERN for the benefit of the CMS collaboration.",

year = "2019",

month = nov,

day = "1",

doi = "10.1140/epjc/s10052-019-7387-y",

language = "English",

volume = "79",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer Nature",

number = "11",

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TY - JOUR

T1 - Search for new physics in top quark production in dilepton final states in proton-proton collisions at √s=13TeV

AU - CMS Collaboration

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Ambrogi, F.

AU - Asilar, E.

AU - Bergauer, T.

AU - Brandstetter, J.

AU - Dragicevic, M.

AU - Erö, J.

AU - Del Valle, A. Escalante

AU - Flechl, M.

AU - Frühwirth, R.

AU - Ghete, V. M.

AU - Hrubec, J.

AU - Jeitler, M.

AU - Krammer, N.

AU - Krätschmer, I.

AU - Liko, D.

AU - Madlener, T.

AU - Mikulec, I.

AU - Rad, N.

AU - Rohringer, H.

AU - Schieck, J.

AU - Schöfbeck, R.

AU - Spanring, M.

AU - Spitzbart, D.

AU - Waltenberger, W.

AU - Wittmann, J.

AU - Wulz, C. E.

AU - Zarucki, M.

AU - Chekhovsky, V.

AU - Mossolov, V.

AU - Gonzalez, J. Suarez

AU - De Wolf, E. A.

AU - Di Croce, D.

AU - Janssen, X.

AU - Lauwers, J.

AU - Lelek, A.

AU - Pieters, M.

AU - Van Haevermaet, H.

AU - Beaudette, F.

AU - de Cassagnac, R. Granier

AU - Nguyen, M.

AU - Ochando, C.

AU - Paganini, P.

AU - Salerno, R.

AU - Zabi, A.

AU - Zghiche, A.

AU - De Wit, A.

AU - Cappati, A.

PY - 2019/11/1

Y1 - 2019/11/1

N2 - 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.

AB - 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.

U2 - 10.1140/epjc/s10052-019-7387-y

DO - 10.1140/epjc/s10052-019-7387-y

M3 - Article

AN - SCOPUS:85074277455

SN - 1434-6044

VL - 79

JO - European Physical Journal C

JF - European Physical Journal C

IS - 11

M1 - 886

ER -

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

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