Measurement of spin correlation between top and antitop quarks produced in pp- collisions at √s = 1.96 TeV

D0 Collaboration

doi:10.1016/j.physletb.2016.03.053

Measurement of spin correlation between top and antitop quarks produced in pp- collisions at √s = 1.96 TeV

D0 Collaboration

Joint Institute for Nuclear Research, Dubna
University of Oklahoma
Tata Institute of Fundamental Research, Mumbai
University of Illinois at Chicago
Florida State University
University of Manchester
Petersburg Nuclear Physics Institute (PNPI)
University of Michigan, Ann Arbor
Louisiana Tech University
Czech Technical University in Prague
National University of Kyiv
Universidad de Los Andes, Colombia
Université Blaise Pascal
Fermi National Accelerator Laboratory
University of Virginia
Northeastern University
University of Kansas
Institut Pierre Simon Laplace, CNRS and CEA
Rua São Francisco de Xavier
Panjab University
Universités Paris VI and VII
University of Freiburg
Lancaster University
Imperial College London
University of Mississippi
Northern Illinois University
University of Nebraska-Lincoln
Stony Brook University
Moscow State University
Visitor from American Association for the Advancement of Science
University of Texas at Arlington
Georg-August-Universität Göttingen
Michigan State University
Johannes Gutenberg University
Augustana College
Uppsala University
CINVESTAV-IPN
University of Notre Dame
Rice University
Korea University
University of Delhi
U.S. Department of Energy
Aix Marseille Université
Women and Infants Hospital of Rhode Island-Warren Alpert Medical School of Brown University
Southern Methodist University
Science Park 105
Radboud University
University of Rochester
Kurchatov Institute
University of Liverpool
University of California, Riverside
Indiana University Bloomington
Institute for Theoretical and Experimental Physics
Rutgers University–New Brunswick
Université de Strasbourg
IGFL, Université de Lyon, Université Lyon 1
University of Lyon
Laboratoire de l'Accélérateur Linéaire
University College Dublin
Oklahoma State University
University of Science and Technology of China
Iowa State University
RWTH Aachen University
Centro Brasileiro de Pesquisas Fisicas
c/o DESY
Stanford Linear Accelerator Center
Universidad San Francisco de Quito
University at Buffalo, The State University of New York
Institute of Nuclear Research, National Academy of Sciences in Ukraine
Purdue University Northwest
University of Arizona
European Organization for Nuclear Research
The Barcelona Institute of Science and Technology
Institute of Physics of the Czech Academy of Sciences
University College London
Federal University of ABC (UFABC)
São Paulo State University
Universität München
Consejo Nacional de Ciencia y Tecnología
Brookhaven National Laboratory
Institute of Meteorology and Climate Research
Laboratoire de Physique Subatomique et de Cosmologie de Grenoble
Instituto Politécnico Nacional
Northwestern University
Oregon State University
Langston University
Charles University
Princeton University
University of Washington
University of Maryland, College Park

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

20 Citations (Scopus)

Résumé

We present a measurement of the correlation between the spins of t and t- quarks produced in proton-antiproton collisions at the Tevatron Collider at a center-of-mass energy of 1.96 TeV. We apply a matrix element technique to dilepton and single-lepton+jets final states in data accumulated with the D0 detector that correspond to an integrated luminosity of 9.7 fb^-1. The measured value of the correlation coefficient in the off-diagonal basis, O_off=0.89±0.22(stat+syst), is in agreement with the standard model prediction, and represents evidence for a top-antitop quark spin correlation difference from zero at a level of 4.2 standard deviations.

langue originale	Anglais
Pages (de - à)	199-206
Nombre de pages	8
journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	757
Les DOIs	https://doi.org/10.1016/j.physletb.2016.03.053
état	Publié - 10 juin 2016
Modification externe	Oui

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10.1016/j.physletb.2016.03.053

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@article{5dc912cd8478424794fc9ca0d32096dd,

title = "Measurement of spin correlation between top and antitop quarks produced in pp- collisions at √s = 1.96 TeV",

abstract = "We present a measurement of the correlation between the spins of t and t- quarks produced in proton-antiproton collisions at the Tevatron Collider at a center-of-mass energy of 1.96 TeV. We apply a matrix element technique to dilepton and single-lepton+jets final states in data accumulated with the D0 detector that correspond to an integrated luminosity of 9.7 fb-1. The measured value of the correlation coefficient in the off-diagonal basis, Ooff=0.89±0.22(stat+syst), is in agreement with the standard model prediction, and represents evidence for a top-antitop quark spin correlation difference from zero at a level of 4.2 standard deviations.",

author = "\{D0 Collaboration\} and Abazov, \{V. M.\} and B. Abbott and Acharya, \{B. S.\} and M. Adams and T. Adams and Agnew, \{J. P.\} and Alexeev, \{G. D.\} and G. Alkhazov and A. Alton and A. Askew and S. Atkins and K. Augsten and V. Aushev and Y. Aushev and C. Avila and F. Badaud and L. Bagby and B. Baldin and Bandurin, \{D. V.\} and S. Banerjee and E. Barberis and P. Baringer and Bartlett, \{J. F.\} and U. Bassler and V. Bazterra and A. Bean and M. Begalli and L. Bellantoni and Beri, \{S. B.\} and G. Bernardi and R. Bernhard and I. Bertram and M. Besan{\c c}on and R. Beuselinck and Bhat, \{P. C.\} and S. Bhatia and V. Bhatnagar and G. Blazey and S. Blessing and K. Bloom and A. Boehnlein and D. Boline and Boos, \{E. E.\} and G. Borissov and M. Borysova and A. Brandt and O. Brandt and R. Brock and A. Bross and D. Brown",

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

year = "2016",

month = jun,

day = "10",

doi = "10.1016/j.physletb.2016.03.053",

language = "English",

volume = "757",

pages = "199--206",

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

issn = "0370-2693",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Measurement of spin correlation between top and antitop quarks produced in pp- collisions at √s = 1.96 TeV

AU - D0 Collaboration

AU - Abazov, V. M.

AU - Abbott, B.

AU - Acharya, B. S.

AU - Adams, M.

AU - Adams, T.

AU - Agnew, J. P.

AU - Alexeev, G. D.

AU - Alkhazov, G.

AU - Alton, A.

AU - Askew, A.

AU - Atkins, S.

AU - Augsten, K.

AU - Aushev, V.

AU - Aushev, Y.

AU - Avila, C.

AU - Badaud, F.

AU - Bagby, L.

AU - Baldin, B.

AU - Bandurin, D. V.

AU - Banerjee, S.

AU - Barberis, E.

AU - Baringer, P.

AU - Bartlett, J. F.

AU - Bassler, U.

AU - Bazterra, V.

AU - Bean, A.

AU - Begalli, M.

AU - Bellantoni, L.

AU - Beri, S. B.

AU - Bernardi, G.

AU - Bernhard, R.

AU - Bertram, I.

AU - Besançon, M.

AU - Beuselinck, R.

AU - Bhat, P. C.

AU - Bhatia, S.

AU - Bhatnagar, V.

AU - Blazey, G.

AU - Blessing, S.

AU - Bloom, K.

AU - Boehnlein, A.

AU - Boline, D.

AU - Boos, E. E.

AU - Borissov, G.

AU - Borysova, M.

AU - Brandt, A.

AU - Brandt, O.

AU - Brock, R.

AU - Bross, A.

AU - Brown, D.

PY - 2016/6/10

Y1 - 2016/6/10

N2 - We present a measurement of the correlation between the spins of t and t- quarks produced in proton-antiproton collisions at the Tevatron Collider at a center-of-mass energy of 1.96 TeV. We apply a matrix element technique to dilepton and single-lepton+jets final states in data accumulated with the D0 detector that correspond to an integrated luminosity of 9.7 fb-1. The measured value of the correlation coefficient in the off-diagonal basis, Ooff=0.89±0.22(stat+syst), is in agreement with the standard model prediction, and represents evidence for a top-antitop quark spin correlation difference from zero at a level of 4.2 standard deviations.

AB - We present a measurement of the correlation between the spins of t and t- quarks produced in proton-antiproton collisions at the Tevatron Collider at a center-of-mass energy of 1.96 TeV. We apply a matrix element technique to dilepton and single-lepton+jets final states in data accumulated with the D0 detector that correspond to an integrated luminosity of 9.7 fb-1. The measured value of the correlation coefficient in the off-diagonal basis, Ooff=0.89±0.22(stat+syst), is in agreement with the standard model prediction, and represents evidence for a top-antitop quark spin correlation difference from zero at a level of 4.2 standard deviations.

UR - https://www.scopus.com/pages/publications/84962674478

U2 - 10.1016/j.physletb.2016.03.053

DO - 10.1016/j.physletb.2016.03.053

M3 - Article

AN - SCOPUS:84962674478

SN - 0370-2693

VL - 757

SP - 199

EP - 206

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 correlation between top and antitop quarks produced in pp- collisions at √s = 1.96 TeV

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