Measurement of spin correlations in tt‾ production using the matrix element method in the muon+jets final state in pp collisions at √s=8 TeV

CMS Collaboration

doi:10.1016/j.physletb.2016.05.005

Measurement of spin correlations in tt‾ production using the matrix element method in the muon+jets final state in pp collisions at √s=8 TeV

CMS Collaboration

European Organization for Nuclear Research
Yerevan Physics Institute
Institut für Hochenergiephysik
Vienna University of Technology
National Centre for Particle and High Energy Physics
CEA/UVSQ/CNRS
Imperial College London
University of Antwerp
Vrjie Universiteit Brussel
Université Libre de Bruxelles
Tsinghua University
Ghent University
University of Louvain
Université de Strasbourg
National Institute of Chemical Physics and Biophysics, Tallinn
Moscow State University
Université de Mons
Centro Brasileiro de Pesquisas Fisicas
Rua São Francisco de Xavier
University of Campinas (UNICAMP)
São Paulo State University
Federal University of ABC (UFABC)
CNRS
Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences
University of Sofia
Institute of High Energy Physics, Chinese Academy of Sciences
Ip Paris
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
University of Cyprus
Charles University
Joint Institute for Nuclear Research, Dubna
Egyptian Network of High Energy Physics
Beni-Suef University
British University in Egypt
Ain Shams University
Zewail City of Science and Technology
University of Helsinki
Helsinki Institute of Physics
LUT University
Université de Haute Alsace
Université Paris-Sud
IGFL, Université de Lyon, Université Lyon 1
Georgian Technical University
Tbilisi State University
RWTH Aachen University
c/o DESY
Universität Hamburg
Joint Faculty of the Brandenburg University of Technology Cottbus Senftenberg
Universität Karlsruhe/Forschungszentrum Karlsruhe
NCSR Demokritos
University of Athens
University of Ioannina
Wigner Research Centre for Physics
Institute of Nuclear Research ATOMKI
Eötvös Loránd University
University of Debrecen
National Institute of Science Education and Research
Panjab University
University of Delhi
Saha Institute of Nuclear Physics
Bhabha Atomic Research Centre
Tata Institute of Fundamental Research, Mumbai
University of Visva-Bharati
King Abdulaziz University
University of Ruhuna
Indian Institute of Science Education and Research (IISER)
Institute for Research in Fundamental Sciences (IPM)
Isfahan University of Technology
University of Tehran
Islamic Azad University, Science and Research Branch
University College Dublin
INFN Sezione di Bari
Università degli studi di Bari Aldo Moro
Politecnico di Bari
INFN Sezione di Bologna
University of Bologna
INFN Sezione di Catania
Università degli Studi di Catania
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
University of Florence
LNF-INFN
Sezione di Genova
University of Genoa
INFN Sezione di Milano-Bicocca
University of Milano-Bicocca
INFN Sezione di Napoli
Università degli Studi della Basilicata
Università G. Marconi
University of Naples Federico II
INFN
University of Padova
Università di Trento
INFN Sezione di Pavia
University of Pavia
INFN Sezione di Perugia
University of Perugia
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
University of Siena
Scuola Normale Superiore di Pisa
University of Pisa
Purdue University
Sezione di Roma
University of Rome
INFN Sezione di Torino
University of Turin
Laboratory of Molecular Pathology
INFN Sezione di Trieste
University of Trieste
Kangwon National University
Kyungpook National University
Chonbuk National University
Chonnam National University
Korea University
Seoul National University
University of Seoul
Sungkyunkwan University
Vilnius University
University Malaya
International Islamic University of Malaysia
MOSTI
CINVESTAV-IPN
Consejo Nacional de Ciencia y Tecnología
Universidad Iberoamericana
Benemerita Universidad Autonoma de Puebla
Universidad Autónoma de San Luis Potosi
University of Auckland
University of Canterbury
Quaid-i-Azam University
National Centre for Nuclear Research
University of Warsaw
Warsaw University of Technology
Lisboa
Institute for Nuclear Research of the Russian Academy of Sciences
Petersburg Nuclear Physics Institute (PNPI)
St. Petersburg State Polytechnical University
Institute for Theoretical and Experimental Physics
National Research Nuclear University MEPhI
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
California Institute of Technology
Kurchatov Institute
University of Belgrade
University of Belgrade
Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT)
Universidad Autónoma de Madrid
University of Oviedo
CSIC-Univ. Cantabria
National Technical University of Athens
Paul Scherrer Institut
ETH Zurich
University of Zurich
University of Bern
National Central University
National Taiwan University
Chulalongkorn University
Cukurova University
Adiyaman University
Mersin University
Cag University
Piri Reis University
Gaziosmanpasa University
Middle East Technical University (METU)
Ozyegin University
Izmir Institute of Technology
Bogazici University
Mimar Sinan University
Marmara University
Kafkas University
Yildiz Technical University
Istanbul Technical University
Hacettepe University
Academy of Science of Ukraine
Kharkov Institute of Physics and Technology
University of Bristol
CCLRC Rutherford Appleton Laboratory
University of Southampton
Instituto de Astrofisica de Canarias
Brunel University London
Baylor University
University of Alabama
Boston University
Women and Infants Hospital of Rhode Island-Warren Alpert Medical School of Brown University
University of California, Davis
University of California, Los Angeles
University of California, Riverside
University of California, San Diego
Utah Valley University
University of California, Santa Barbara
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
University of Iowa
Argonne National Laboratory
Erzincan 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
University at Buffalo, The State University of New York
Northeastern University
Northwestern University
University of Notre Dame
The Ohio State University
Princeton University
University of Puerto Rico
Purdue University Northwest
Rice University
University of Rochester
The Rockefeller University
Rutgers University–New Brunswick
University of Tennessee
Texas A&M University
Texas A&M University at Qatar
Texas Tech University
Vanderbilt University
University of Virginia
Wayne State University
University of Wisconsin-Madison

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

38 Citations (Scopus)

Résumé

The consistency of the spin correlation strength in top quark pair production with the standard model (SM) prediction is tested in the muon+jets final state. The events are selected from pp collisions, collected by the CMS detector, at a centre-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 19.7 fb⁻¹. The data are compared with the expectation for the spin correlation predicted by the SM and with the expectation of no correlation. Using a template fit method, the fraction of events that show SM spin correlations is measured to be 0.72±0.08(stat)_−0.13 ^+0.15(syst), representing the most precise measurement of this quantity in the muon+jets final state to date.

langue originale	Anglais
Pages (de - à)	321-346
Nombre de pages	26
journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	758
Les DOIs	https://doi.org/10.1016/j.physletb.2016.05.005
état	Publié - 10 juil. 2016

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10.1016/j.physletb.2016.05.005

Contient cette citation

@article{7d99aacd3ba242f69c71cba1af6a6b61,

title = "Measurement of spin correlations in tt‾ production using the matrix element method in the muon+jets final state in pp collisions at √s=8 TeV",

abstract = "The consistency of the spin correlation strength in top quark pair production with the standard model (SM) prediction is tested in the muon+jets final state. The events are selected from pp collisions, collected by the CMS detector, at a centre-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 19.7 fb−1. The data are compared with the expectation for the spin correlation predicted by the SM and with the expectation of no correlation. Using a template fit method, the fraction of events that show SM spin correlations is measured to be 0.72±0.08(stat)−0.13 +0.15(syst), representing the most precise measurement of this quantity in the muon+jets final state to date.",

keywords = "CMS, LHC, Matrix element method, Spin, Top quark",

author = "\{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 A. Zghiche and F. Beaudette and C. Charlot and O. Davignon and \{Granier de Cassagnac\}, R. and M. Nguyen and C. Ochando and P. Paganini and R. Salerno and Sauvan, \{J. B.\} and Y. Sirois and A. Zabi and \{De Wit\}, A.",

note = "Publisher Copyright: {\textcopyright} 2016 The Author",

year = "2016",

month = jul,

day = "10",

doi = "10.1016/j.physletb.2016.05.005",

language = "English",

volume = "758",

pages = "321--346",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

}

Measurement of spin correlations in tt‾ production using the matrix element method in the muon+jets final state in pp collisions at √s=8 TeV. / CMS Collaboration.
Dans: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol 758, 10.07.2016, p. 321-346.

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

TY - JOUR

T1 - Measurement of spin correlations in tt‾ production using the matrix element method in the muon+jets final state in pp collisions at √s=8 TeV

AU - 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 - Zghiche, A.

AU - Beaudette, F.

AU - Charlot, C.

AU - Davignon, O.

AU - Granier de Cassagnac, R.

AU - Nguyen, M.

AU - Ochando, C.

AU - Paganini, P.

AU - Salerno, R.

AU - Sauvan, J. B.

AU - Sirois, Y.

AU - Zabi, A.

AU - De Wit, A.

PY - 2016/7/10

Y1 - 2016/7/10

N2 - The consistency of the spin correlation strength in top quark pair production with the standard model (SM) prediction is tested in the muon+jets final state. The events are selected from pp collisions, collected by the CMS detector, at a centre-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 19.7 fb−1. The data are compared with the expectation for the spin correlation predicted by the SM and with the expectation of no correlation. Using a template fit method, the fraction of events that show SM spin correlations is measured to be 0.72±0.08(stat)−0.13 +0.15(syst), representing the most precise measurement of this quantity in the muon+jets final state to date.

AB - The consistency of the spin correlation strength in top quark pair production with the standard model (SM) prediction is tested in the muon+jets final state. The events are selected from pp collisions, collected by the CMS detector, at a centre-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 19.7 fb−1. The data are compared with the expectation for the spin correlation predicted by the SM and with the expectation of no correlation. Using a template fit method, the fraction of events that show SM spin correlations is measured to be 0.72±0.08(stat)−0.13 +0.15(syst), representing the most precise measurement of this quantity in the muon+jets final state to date.

KW - CMS

KW - LHC

KW - Matrix element method

KW - Spin

KW - Top quark

U2 - 10.1016/j.physletb.2016.05.005

DO - 10.1016/j.physletb.2016.05.005

M3 - Article

AN - SCOPUS:85040814864

SN - 0370-2693

VL - 758

SP - 321

EP - 346

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

ER -

Measurement of spin correlations in tt‾ production using the matrix element method in the muon+jets final state in pp collisions at √s=8 TeV

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