Observation of top quark pairs produced in association with a vector boson in pp collisions at √s = 8 TeV

The CMS collaboration

doi:10.1007/JHEP01(2016)096

Observation of top quark pairs produced in association with a vector boson in pp collisions at √s = 8 TeV

The CMS collaboration

Yüksek Enerji ve Plazma Fiziği Anabilim Dalı

A. Alikhanian Yerevan Institute of Physics
Austrian Academy of Sciences
TU Wien
CERN
Belarusian State University
University of Antwerp
Istanbul Technical University
Vrije Universiteit Brussel
Université libre de Bruxelles
Peking University
Ghent University
Université catholique de Louvain
Institut Pluridisciplinaire Hubert Curien
National Institute of Chemical Physics and Biophysics, Tallinn
Lomonosov Moscow State University
Universite de Mons
Centro Brasileiro de Pesquisas Físicas
Universidade do Estado do Rio de Janeiro
Universidade Estadual de Campinas
Universidade Estadual Paulista Júlio de Mesquita Filho
Universidade Federal do ABC
CNRS
Bulgarian Academy of Sciences
Sofia University St. Kliment Ohridski
CAS - Institute of High Energy Physics
Laboratoire Leprince-Ringuet
Universidad de los Andes Colombia
Universidad de Cantabria
University of Split
Ruder Boskovic Institute
University of Cyprus
Charles University
Joint Institute for Nuclear Research
Helwan University
Zewail City of Science and Technology
Academy of Scientific Research and Technology
Ain Shams University
The British University in Egypt
Al-Fayoum University
University of Helsinki
Lappeenranta-Lahti University of Technology
CEA/Saclay
Université de Haute-Alsace
CNRS/IN2P3
Universite Claude Bernard Lyon 1
Ivane Javakhishvili Tbilisi State University
Georgian Technical University
RWTH Aachen University
German Electron Synchrotron
University of Hamburg
Brandenburg University of Technology
Institut für Experimentelle Kernphysik
Demokritos National Centre for Scientific Research
National and Kapodistrian University of Athens
University of Ioannina
Wigner Research Centre for Physics
Institute for Nuclear Research
Eötvös Loránd University
University of Debrecen
National Institute of Science Education and Research
Panjab University
University of Delhi
Tata Institute of Fundamental Research
Homi Bhabha National Institute
Visva-Bharati University
King Abdulaziz University
University of Ruhuna
Indian Institute of Science Education and Research Pune
Institute for Research for Fundamental Sciences
Isfahan University of Technology
University of Tehran
Islamic Azad University
University College Dublin
National Institute for Nuclear Physics
University of Bari
Polytechnic University of Bari
University of Bologna
University of Catania
University of Florence
University of Genoa
University of Milan - Bicocca
University of Basilicata
Università G. Marconi
University of Naples Federico II
University of Padua
University of Trento
University of Pavia
University of Perugia
University of Siena
University of Pisa
Purdue University
Scuola Normale Superiore di Pisa
Università di Roma
University of Rome La Sapienza
University of Turin
University of Eastern Piedmont
University of Trieste
Kangwon National University
Kyungpook National University
Jeonbuk National University
Chonnam National University
Korea University
Seoul National University
University of Seoul
Sungkyunkwan University
Vilnius University
University of Malaya
International Islamic University Malaysia
Malaysian Nuclear Agency
Centro de Investigacion y de Estudios Avanzados del Instituto Politécnico Nacional
Consejo Nacional de Ciencia y Tecnologia Mexico
Universidad Iberoamericana (UIA)
Benemerita Universidad Autonoma de Puebla
Universidad Autonoma de San Luis Potosi
The University of Auckland
University of Canterbury
Quaid-I-Azam University
National Centre for Nuclear Research
University of Warsaw
Warsaw University of Technology
Laboratório de Instrumentação e Física Experimental de Partículas
Institute for Nuclear Research of the Russian Academy of Sciences
Petersburg Nuclear Physics Institute (PNPI)
Peter the Great St. Petersburg Polytechnic University
Alikhanov Institute for Theoretical and Experimental Physics
Moscow Engineering Physics Institute
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
California Institute of Technology
Institute for High Energy Physics of National Research Centre ‘Kurchatov Institute’
University of Belgrade
CIEMAT
Universidad Autónoma de Madrid
University of Oviedo
National Technical University of Athens
Paul Scherrer Institute
Institute for Particle Physics and Astrophysics (IPA)
University of Zurich
University of Bern
National Central University
National Taiwan University
Chulalongkorn University
Cukurova University
Gaziosmanpasa University
Adiyaman University
Mersin University
Cag University
Piri Reis University
Middle East Technical University
Ozyegin University
Izmir Institute of Technology
Istanbul Bilgi University
Bogazici University
Marmara University
Kafkas University
Yildiz Technical University
NASU - Institute for Single Crystals
NASU - Kharkov Institute of Physics and Technology
University of Bristol
Rutherford Appleton Laboratory
University of Southampton
Imperial College London
Instituto de Astrofísica de Canarias
Brunel University London
Baylor University
University of Alabama
Boston University
Brown University
University of California at Davis
University of California at Los Angeles
University of California at Riverside
University of California at Santa Barbara
Utah Valley University
University of California at San Diego
Carnegie Mellon University
University of Colorado Boulder
Cornell University
Fermi National Accelerator Laboratory
University of Florida
Florida International University
Florida State University
Florida Institute of Technology
University of Illinois at Chicago
Argonne National Laboratory
University of Iowa
Erzincan University
Mimar Sinan Guzel Sanatlar University
Johns Hopkins University
University of Kansas
Kansas State University
Lawrence Livermore National Laboratory
University of Maryland, College Park
Massachusetts Institute of Technology
University of Minnesota Twin Cities
University of Mississippi
University of Nebraska-Lincoln
SUNY Buffalo
Northeastern University
Northwestern University
University of Notre Dame
Ohio State University
Princeton University
University of Puerto Rico
Purdue University Northwest
Rice University
University of Rochester
Rockefeller University
Rutgers - The State University of New Jersey, New Brunswick
University of Tennessee
Texas A&M University at Qatar
Texas A&M University
Texas Tech University
Vanderbilt University
University of Virginia
Wayne State University
University of Wisconsin-Madison

Araştırma sonucu: Dergiye katkı › Makale › bilirkişi

56 Alıntılar (Scopus)

Özet

Measurements of the cross sections for top quark pairs produced in association with a W or Z boson are presented, using 8 TeV pp collision data corresponding to an integrated luminosity of 19.5 fb^-1, collected by the CMS experiment at the LHC. Final states are selected in which the associated W boson decays to a charged lepton and a neutrino or the Z boson decays to two charged leptons. Signal events are identified by matching reconstructed objects in the detector to specific final state particles from tt̄W or tt̄Z decays. The tt̄W cross section is measured to be (Formula Presented) fb with a significance of 4.8 standard deviations from the background-only hypothesis. The tt̄Z cross section is measured to be (Formula Presented) fb with a significance of 6.4 standard deviations from the background-only hypothesis. These measurements are used to set bounds on five anomalous dimension-six operators that would affect the tt̄W and tt̄Z cross sections.

Orijinal dil	İngilizce
Makale numarası	96
Dergi	Journal of High Energy Physics
Hacim	2016
Basın numarası	1
DOI'lar	https://doi.org/10.1007/JHEP01(2016)096
Yayın durumu	Yayınlandı - 2016

Belgeye Erişim

10.1007/JHEP01(2016)096

Diger dosyalar ve linkler

Link to publication in Scopus

Bundan alıntı yap

@article{35b66f031b5e4fbd8eb0c2f58fbf1162,

title = "Observation of top quark pairs produced in association with a vector boson in pp collisions at √s = 8 TeV",

abstract = "Measurements of the cross sections for top quark pairs produced in association with a W or Z boson are presented, using 8 TeV pp collision data corresponding to an integrated luminosity of 19.5 fb-1, collected by the CMS experiment at the LHC. Final states are selected in which the associated W boson decays to a charged lepton and a neutrino or the Z boson decays to two charged leptons. Signal events are identified by matching reconstructed objects in the detector to specific final state particles from t{\=t}W or t{\=t}Z decays. The t{\=t}W cross section is measured to be (Formula Presented) fb with a significance of 4.8 standard deviations from the background-only hypothesis. The t{\=t}Z cross section is measured to be (Formula Presented) fb with a significance of 6.4 standard deviations from the background-only hypothesis. These measurements are used to set bounds on five anomalous dimension-six operators that would affect the t{\=t}W and t{\=t}Z cross sections.",

keywords = "Electroweak interaction, Hadron-Hadron scattering, Top physics",

author = "\{The CMS collaboration\} and V. Khachatryan and Sirunyan, \{A. M.\} and A. Tumasyan and W. Adam and E. Asilar and T. Bergauer and J. Brandstetter and E. Brondolin and M. Dragicevic and J. Er{\"o} and M. Flechl and M. Friedl and R. Fr{\"u}hwirth and Ghete, \{V. M.\} and C. Hartl and N. H{\"o}rmann and J. Hrubec and M. Jeitler and V. Kn{\"u}nz and A. K{\"o}nig and M. Krammer and I. Kr{\"a}tschmer and D. Liko and T. Matsushita and I. Mikulec and D. Rabady and B. Rahbaran and H. Rohringer and J. Schieck and R. Sch{\"o}fbeck and J. Strauss and W. Treberer-Treberspurg and W. Waltenberger and Wulz, \{C. E.\} and V. Mossolov and N. Shumeiko and \{Suarez Gonzalez\}, J. and S. Alderweireldt and T. Cornelis and \{De Wolf\}, \{E. A.\} and X. Janssen and A. Knutsson and J. Lauwers and S. Luyckx and R. Rougny and \{Van De Klundert\}, M. and \{Van Haevermaet\}, H. and \{Van Mechelen\}, P. and \{Van Remortel\}, N. and S. Sen",

year = "2016",

doi = "10.1007/JHEP01(2016)096",

language = "English",

volume = "2016",

journal = "Journal of High Energy Physics",

issn = "1029-8479",

publisher = "Springer Verlag",

number = "1",

}

TY - JOUR

T1 - Observation of top quark pairs produced in association with a vector boson in pp collisions at √s = 8 TeV

AU - The CMS collaboration

AU - Khachatryan, V.

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Asilar, E.

AU - Bergauer, T.

AU - Brandstetter, J.

AU - Brondolin, E.

AU - Dragicevic, M.

AU - Erö, J.

AU - Flechl, M.

AU - Friedl, M.

AU - Frühwirth, R.

AU - Ghete, V. M.

AU - Hartl, C.

AU - Hörmann, N.

AU - Hrubec, J.

AU - Jeitler, M.

AU - Knünz, V.

AU - König, A.

AU - Krammer, M.

AU - Krätschmer, I.

AU - Liko, D.

AU - Matsushita, T.

AU - Mikulec, I.

AU - Rabady, D.

AU - Rahbaran, B.

AU - Rohringer, H.

AU - Schieck, J.

AU - Schöfbeck, R.

AU - Strauss, J.

AU - Treberer-Treberspurg, W.

AU - Waltenberger, W.

AU - Wulz, C. E.

AU - Mossolov, V.

AU - Shumeiko, N.

AU - Suarez Gonzalez, J.

AU - Alderweireldt, S.

AU - Cornelis, T.

AU - De Wolf, E. A.

AU - Janssen, X.

AU - Knutsson, A.

AU - Lauwers, J.

AU - Luyckx, S.

AU - Rougny, R.

AU - Van De Klundert, M.

AU - Van Haevermaet, H.

AU - Van Mechelen, P.

AU - Van Remortel, N.

AU - Sen, S.

PY - 2016

Y1 - 2016

N2 - Measurements of the cross sections for top quark pairs produced in association with a W or Z boson are presented, using 8 TeV pp collision data corresponding to an integrated luminosity of 19.5 fb-1, collected by the CMS experiment at the LHC. Final states are selected in which the associated W boson decays to a charged lepton and a neutrino or the Z boson decays to two charged leptons. Signal events are identified by matching reconstructed objects in the detector to specific final state particles from tt̄W or tt̄Z decays. The tt̄W cross section is measured to be (Formula Presented) fb with a significance of 4.8 standard deviations from the background-only hypothesis. The tt̄Z cross section is measured to be (Formula Presented) fb with a significance of 6.4 standard deviations from the background-only hypothesis. These measurements are used to set bounds on five anomalous dimension-six operators that would affect the tt̄W and tt̄Z cross sections.

AB - Measurements of the cross sections for top quark pairs produced in association with a W or Z boson are presented, using 8 TeV pp collision data corresponding to an integrated luminosity of 19.5 fb-1, collected by the CMS experiment at the LHC. Final states are selected in which the associated W boson decays to a charged lepton and a neutrino or the Z boson decays to two charged leptons. Signal events are identified by matching reconstructed objects in the detector to specific final state particles from tt̄W or tt̄Z decays. The tt̄W cross section is measured to be (Formula Presented) fb with a significance of 4.8 standard deviations from the background-only hypothesis. The tt̄Z cross section is measured to be (Formula Presented) fb with a significance of 6.4 standard deviations from the background-only hypothesis. These measurements are used to set bounds on five anomalous dimension-six operators that would affect the tt̄W and tt̄Z cross sections.

KW - Electroweak interaction

KW - Hadron-Hadron scattering

KW - Top physics

UR - https://www.scopus.com/pages/publications/85009932536

U2 - 10.1007/JHEP01(2016)096

DO - 10.1007/JHEP01(2016)096

M3 - Article

AN - SCOPUS:85009932536

SN - 1029-8479

VL - 2016

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 1

M1 - 96

ER -

Observation of top quark pairs produced in association with a vector boson in pp collisions at √s = 8 TeV

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