Measurement of top quark-antiquark pair production in association with a W or Z boson in pp collisions at root s=8 TeV
dc.contributor.author | CMS Collaboration | |
dc.contributor.author | Charaf, O. | |
dc.contributor.author | Cooper, S.I. | |
dc.contributor.author | Henderson, C. | |
dc.contributor.author | Rumerio, P. | |
dc.contributor.other | Yerevan Physics Institute | |
dc.contributor.other | Belarusian State University | |
dc.contributor.other | National Center of Particles & High Energy Physics - Belarus | |
dc.contributor.other | University of Antwerp | |
dc.contributor.other | Vrije Universiteit Brussel | |
dc.contributor.other | Universite Libre de Bruxelles | |
dc.contributor.other | Ghent University | |
dc.contributor.other | Universite Catholique Louvain | |
dc.contributor.other | University of Mons | |
dc.contributor.other | Centro Brasileiro de Pesquisas Fisicas | |
dc.contributor.other | Universidade do Estado do Rio de Janeiro | |
dc.contributor.other | Universidade Estadual Paulista | |
dc.contributor.other | Universidade Federal do ABC (UFABC) | |
dc.contributor.other | Bulgarian Academy of Sciences | |
dc.contributor.other | University of Sofia | |
dc.contributor.other | Chinese Academy of Sciences | |
dc.contributor.other | Institute of High Energy Physics, CAS | |
dc.contributor.other | Peking University | |
dc.contributor.other | Universidad de los Andes (Colombia) | |
dc.contributor.other | University of Split | |
dc.contributor.other | Rudjer Boskovic Institute | |
dc.contributor.other | University of Cyprus | |
dc.contributor.other | Charles University Prague | |
dc.contributor.other | Egyptian Academy of Scientific Research & Technology (ASRT) | |
dc.contributor.other | Egyptian Knowledge Bank (EKB) | |
dc.contributor.other | Egyptian Network of High Energy Physics (ENHEP) | |
dc.contributor.other | National Institute of Chemical Physics & Biophysics (NICPB) | |
dc.contributor.other | University of Helsinki | |
dc.contributor.other | Helsinki Institute of Physics | |
dc.contributor.other | Lappeenranta University of Technology | |
dc.contributor.other | CEA | |
dc.contributor.other | UDICE-French Research Universities | |
dc.contributor.other | Universite Paris Saclay | |
dc.contributor.other | Centre National de la Recherche Scientifique (CNRS) | |
dc.contributor.other | CNRS - National Institute of Nuclear and Particle Physics (IN2P3) | |
dc.contributor.other | Institut Polytechnique de Paris | |
dc.contributor.other | Universites de Strasbourg Etablissements Associes | |
dc.contributor.other | Universite de Strasbourg | |
dc.contributor.other | Universite de Haute-Alsace (UHA) | |
dc.contributor.other | Universite Claude Bernard Lyon 1 | |
dc.contributor.other | Ivane Javakhishvili Tbilisi State University | |
dc.contributor.other | RWTH Aachen University | |
dc.contributor.other | Helmholtz Association | |
dc.contributor.other | Deutsches Elektronen-Synchrotron (DESY) | |
dc.contributor.other | University of Hamburg | |
dc.contributor.other | Karlsruhe Institute of Technology | |
dc.contributor.other | National Centre of Scientific Research "Demokritos" | |
dc.contributor.other | National & Kapodistrian University of Athens | |
dc.contributor.other | University of Ioannina | |
dc.contributor.other | Eotvos Lorand Research Network | |
dc.contributor.other | Hungarian Academy of Sciences | |
dc.contributor.other | Hungarian Wigner Research Centre for Physics | |
dc.contributor.other | Hungarian Institute for Nuclear Research | |
dc.contributor.other | University of Debrecen | |
dc.contributor.other | National Institute of Science Education & Research (NISER) | |
dc.contributor.other | Panjab University | |
dc.contributor.other | University of Delhi | |
dc.contributor.other | Saha Institute of Nuclear Physics | |
dc.contributor.other | Bhabha Atomic Research Center (BARC) | |
dc.contributor.other | Tata Institute of Fundamental Research (TIFR) | |
dc.contributor.other | University College Dublin | |
dc.contributor.other | Istituto Nazionale di Fisica Nucleare (INFN) | |
dc.contributor.other | Universita degli Studi di Bari Aldo Moro | |
dc.contributor.other | Politecnico di Bari | |
dc.contributor.other | University of Bologna | |
dc.contributor.other | University of Catania | |
dc.contributor.other | University of Florence | |
dc.contributor.other | University of Genoa | |
dc.contributor.other | University of Milano-Bicocca | |
dc.contributor.other | University of Naples Federico II | |
dc.contributor.other | University of Basilicata | |
dc.contributor.other | Guglielmo Marconi University | |
dc.contributor.other | University of Padua | |
dc.contributor.other | University of Trento | |
dc.contributor.other | University of Pavia | |
dc.contributor.other | University of Perugia | |
dc.contributor.other | University of Pisa | |
dc.contributor.other | Scuola Normale Superiore di Pisa | |
dc.contributor.other | Sapienza University Rome | |
dc.contributor.other | University of Turin | |
dc.contributor.other | University of Eastern Piedmont Amedeo Avogadro | |
dc.contributor.other | University of Trieste | |
dc.contributor.other | Jeonbuk National University | |
dc.contributor.other | Kangwon National University | |
dc.contributor.other | Kyungpook National University | |
dc.contributor.other | Chonnam National University | |
dc.contributor.other | Korea University | |
dc.contributor.other | University of Seoul | |
dc.contributor.other | Sungkyunkwan University (SKKU) | |
dc.contributor.other | Vilnius University | |
dc.contributor.other | Universiti Malaya | |
dc.contributor.other | CINVESTAV - Centro de Investigacion y de Estudios Avanzados del Instituto Politecnico Nacional | |
dc.contributor.other | Instituto Politecnico Nacional - Mexico | |
dc.contributor.other | Universidad Iberoamericana Ciudad de Mexico | |
dc.contributor.other | Benemerita Universidad Autonoma de Puebla | |
dc.contributor.other | Universidad Autonoma de San Luis Potosi | |
dc.contributor.other | University of Auckland | |
dc.contributor.other | University of Canterbury | |
dc.contributor.other | National Centre for Physics - Pakistan | |
dc.contributor.other | Quaid I Azam University | |
dc.contributor.other | National Centre for Nuclear Research | |
dc.contributor.other | University of Warsaw | |
dc.contributor.other | Laboratorio de Instrumentacao e Fisica Experimental de Particulas | |
dc.contributor.other | Joint Institute for Nuclear Research - Russia | |
dc.contributor.other | National Research Centre - Kurchatov Institute | |
dc.contributor.other | Petersburg Nuclear Physics Institute | |
dc.contributor.other | Russian Academy of Sciences | |
dc.contributor.other | Institute for Nuclear Research of the Russian Academy of Sciences | |
dc.contributor.other | Alikhanov Institute for Theoretical & Experimental Physics | |
dc.contributor.other | Russian Academy of Science Lebedev Physical Institute | |
dc.contributor.other | Lomonosov Moscow State University | |
dc.contributor.other | Institute of High Energy Physics - IHEP | |
dc.contributor.other | University of Belgrade | |
dc.contributor.other | Centro de Investigaciones Energeticas, Medioambientales Tecnologicas | |
dc.contributor.other | Autonomous University of Madrid | |
dc.contributor.other | University of Oviedo | |
dc.contributor.other | Consejo Superior de Investigaciones Cientificas (CSIC) | |
dc.contributor.other | Universidad de Cantabria | |
dc.contributor.other | CSIC - Instituto de Fisica de Cantabria (IFCA) | |
dc.contributor.other | European Organization for Nuclear Research (CERN) | |
dc.contributor.other | Swiss Federal Institutes of Technology Domain | |
dc.contributor.other | Paul Scherrer Institute | |
dc.contributor.other | ETH Zurich | |
dc.contributor.other | University of Zurich | |
dc.contributor.other | National Central University | |
dc.contributor.other | National Taiwan University | |
dc.contributor.other | Chulalongkorn University | |
dc.contributor.other | Cukurova University | |
dc.contributor.other | Middle East Technical University | |
dc.contributor.other | Bogazici University | |
dc.contributor.other | Istanbul Technical University | |
dc.contributor.other | Kharkov Institute of Physics & Technology | |
dc.contributor.other | University of Bristol | |
dc.contributor.other | UK Research & Innovation (UKRI) | |
dc.contributor.other | Science & Technology Facilities Council (STFC) | |
dc.contributor.other | STFC Rutherford Appleton Laboratory | |
dc.contributor.other | Imperial College London | |
dc.contributor.other | Brunel University | |
dc.contributor.other | Baylor University | |
dc.contributor.other | University of Alabama Tuscaloosa | |
dc.contributor.other | Boston University | |
dc.contributor.other | Brown University | |
dc.contributor.other | University of California System | |
dc.contributor.other | University of California Davis | |
dc.contributor.other | University of California Los Angeles | |
dc.contributor.other | University of California Riverside | |
dc.contributor.other | University of California San Diego | |
dc.contributor.other | University of California Santa Barbara | |
dc.contributor.other | California Institute of Technology | |
dc.contributor.other | Carnegie Mellon University | |
dc.contributor.other | University of Colorado System | |
dc.contributor.other | University of Colorado Boulder | |
dc.contributor.other | Cornell University | |
dc.contributor.other | Fairfield University | |
dc.contributor.other | United States Department of Energy (DOE) | |
dc.contributor.other | University of Chicago | |
dc.contributor.other | Fermi National Accelerator Laboratory | |
dc.contributor.other | State University System of Florida | |
dc.contributor.other | University of Florida | |
dc.contributor.other | Florida International University | |
dc.contributor.other | Florida State University | |
dc.contributor.other | Florida Institute of Technology | |
dc.contributor.other | University of Illinois System | |
dc.contributor.other | University of Illinois Chicago | |
dc.contributor.other | University of Illinois Chicago Hospital | |
dc.contributor.other | University of Iowa | |
dc.contributor.other | Johns Hopkins University | |
dc.contributor.other | University of Kansas | |
dc.contributor.other | Kansas State University | |
dc.contributor.other | Lawrence Livermore National Laboratory | |
dc.contributor.other | University System of Maryland | |
dc.contributor.other | University of Maryland College Park | |
dc.contributor.other | Massachusetts Institute of Technology (MIT) | |
dc.contributor.other | University of Minnesota System | |
dc.contributor.other | University of Minnesota Twin Cities | |
dc.contributor.other | University of Mississippi | |
dc.contributor.other | University of Nebraska System | |
dc.contributor.other | University of Nebraska Lincoln | |
dc.contributor.other | State University of New York (SUNY) System | |
dc.contributor.other | State University of New York (SUNY) Buffalo | |
dc.contributor.other | Northeastern University | |
dc.contributor.other | Northwestern University | |
dc.contributor.other | University of Notre Dame | |
dc.contributor.other | University System of Ohio | |
dc.contributor.other | Ohio State University | |
dc.contributor.other | Princeton University | |
dc.contributor.other | University of Puerto Rico | |
dc.contributor.other | University of Puerto Rico Mayaguez | |
dc.contributor.other | Purdue University System | |
dc.contributor.other | Purdue University | |
dc.contributor.other | Purdue University West Lafayette Campus | |
dc.contributor.other | Rice University | |
dc.contributor.other | University of Rochester | |
dc.contributor.other | Rockefeller University | |
dc.contributor.other | Rutgers State University New Brunswick | |
dc.contributor.other | University of Tennessee System | |
dc.contributor.other | University of Tennessee Knoxville | |
dc.contributor.other | Texas A&M University System | |
dc.contributor.other | Texas A&M University College Station | |
dc.contributor.other | Texas Tech University System | |
dc.contributor.other | Texas Tech University | |
dc.contributor.other | Vanderbilt University | |
dc.contributor.other | University of Virginia | |
dc.contributor.other | Wayne State University | |
dc.contributor.other | University of Wisconsin System | |
dc.contributor.other | University of Wisconsin Madison | |
dc.contributor.other | Technische Universitat Wien | |
dc.contributor.other | Universidade Estadual de Campinas | |
dc.contributor.other | Suez University | |
dc.contributor.other | Cairo University | |
dc.contributor.other | Fayoum University | |
dc.contributor.other | British University in Egypt | |
dc.contributor.other | Ain Shams University | |
dc.contributor.other | Brandenburg University of Technology Cottbus | |
dc.contributor.other | Eotvos Lorand University | |
dc.contributor.other | Visva Bharati University | |
dc.contributor.other | King Abdulaziz University | |
dc.contributor.other | University Ruhuna | |
dc.contributor.other | Isfahan University of Technology | |
dc.contributor.other | Sharif University of Technology | |
dc.contributor.other | Islamic Azad University | |
dc.contributor.other | University of Siena | |
dc.contributor.other | Universidad Michoacana de San Nicolas de Hidalgo | |
dc.contributor.other | Peter the Great St. Petersburg Polytechnic University | |
dc.contributor.other | University of Bern | |
dc.contributor.other | Gaziosmanpasa University | |
dc.contributor.other | Adiyaman University | |
dc.contributor.other | Cag University - Turkey | |
dc.contributor.other | Mersin University | |
dc.contributor.other | Izmir Institute of Technology | |
dc.contributor.other | Ozyegin University | |
dc.contributor.other | Marmara University | |
dc.contributor.other | Kafkas University | |
dc.contributor.other | Mimar Sinan Guzel Sanatlar University | |
dc.contributor.other | University of Southampton | |
dc.contributor.other | Argonne National Laboratory | |
dc.contributor.other | Erzincan Binali Yildirim University | |
dc.contributor.other | Yildiz Technical University | |
dc.contributor.other | Qatar Foundation (QF) | |
dc.contributor.other | Texas A&M University Qatar | |
dc.date.accessioned | 2022-08-02T15:11:35Z | |
dc.date.available | 2022-08-02T15:11:35Z | |
dc.date.issued | 2014 | |
dc.description.abstract | A measurement of the cross section for the production of top quark-antiquark pairs \(t\overline{t}\) in association with a vector boson V (W or Z) in proton-proton collisions at \(\sqrt{s}\)=8TeV is presented. The results are based on a dataset corresponding to an integrated luminosity of 19.5 fb⁻¹ recorded with the CMS detector at the LHC. The measurement is performed in three leptonic (e and \(\mu\)) channels: a same-sign dilepton analysis targeting \(t\overline{t}W\) events, and trilepton and four-lepton analyses designed for \(t\overline{t}Z\) events. In the same-sign dilepton channel, the \(t\overline{t}W\) cross section is measured as\(\sigma_{t\overline{t}W} = 170_{-90}^{+90} (stat) ± 70 (syst) fb\), corresponding to a significance of 1.6 standard deviations over the background-only hypothesis. Combining the trilepton and four-lepton channels, a direct measurement of the \(t\overline{t}Z\) cross section, \(\sigma_{t\overline{t}Z} = 200_{-70}^{+80} (stat)_{-30}^{+40} (syst)fb^{-1}\), is obtained with a significance of 3.1 standard deviations. The measured cross sections are compatible with standard model predictions within their experimental uncertainties. The inclusive \(t\overline{t}V\) process is observed with a significance of 3.7 standard deviations from the combination of all three leptonic channels. | en_US |
dc.format.mimetype | application/pdf | |
dc.identifier.citation | Khachatryan, V., Sirunyan, A. M., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Erö, J., Fabjan, C., Friedl, M., Frühwirth, R., Ghete, V. M., Hartl, C., Hörmann, N., Hrubec, J., Jeitler, M., Kiesenhofer, W., Knünz, V., Krammer, M., … Collaboration, [Authorinst]The CMS. (2014). Measurement of top quark–antiquark pair production in association with a W or Z boson in pp collisions at $\sqrt{s} = 8$ s = 8 $\,\text {TeV}$ TeV. In The European Physical Journal C (Vol. 74, Issue 9). Springer Science and Business Media LLC. https://doi.org/10.1140/epjc/s10052-014-3060-7 | |
dc.identifier.doi | 10.1140/epjc/s10052-014-3060-7 | |
dc.identifier.uri | https://ir.ua.edu/handle/123456789/8712 | |
dc.language | English | |
dc.language.iso | en_US | |
dc.publisher | Springer | |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/ | |
dc.subject | Physics, Particles & Fields | |
dc.subject | Physics | |
dc.title | Measurement of top quark-antiquark pair production in association with a W or Z boson in pp collisions at root s=8 TeV | en_US |
dc.type | text | |
dc.type | Article |
Files
Original bundle
1 - 1 of 1