Combined Forward-Backward Asymmetry Measurements in Top-Antitop Quark Production at the Tevatron

CDF Collaboration

doi:10.1103/PhysRevLett.120.042001

Combined Forward-Backward Asymmetry Measurements in Top-Antitop Quark Production at the Tevatron

CDF Collaboration

University of Helsinki
Joint Institute for Nuclear Research
University of Oklahoma
Tata Institute of Fundamental Research
University of Illinois at Chicago
Florida State University
University of Manchester
RAS - Saint Petersburg Nuclear Physics Institute
University of Michigan, Ann Arbor
Augustana University
National Institute for Nuclear Physics
University of Padua
Fermi National Accelerator Laboratory
Northwestern University
Comenius University
Slovak Academy of Sciences
Waseda University
Texas A&M University
Louisiana Tech University
Argonne National Laboratory
Czech Technical University in Prague
Kyiv National Taras Shevchenko University
Universidad de los Andes Colombia
University of Oxford
Université Blaise Pascal
Kyungpook National University
Ewha Womans University
Seoul National University
Sungkyunkwan University
Korea Institute of Science and Technology Information
Chonnam National University
University of Virginia
Lawrence Berkeley National Laboratory
Northeastern University
University of Kansas
Purdue University
Johns Hopkins University
University of Siena
CEA Saclay

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36 Scopus citations

Abstract

The CDF and D0 experiments at the Fermilab Tevatron have measured the asymmetry between yields of forward- and backward-produced top and antitop quarks based on their rapidity difference and the asymmetry between their decay leptons. These measurements use the full data sets collected in proton-antiproton collisions at a center-of-mass energy of s=1.96 TeV. We report the results of combinations of the inclusive asymmetries and their differential dependencies on relevant kinematic quantities. The combined inclusive asymmetry is AFBtt̄=0.128±0.025. The combined inclusive and differential asymmetries are consistent with recent standard model predictions.

Original language	English
Article number	042001
Journal	Physical Review Letters
Volume	120
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevLett.120.042001
State	Published - 24 Jan 2018

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10.1103/PhysRevLett.120.042001

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@article{9b64e9b502b643ab90daf353610b4f06,

title = "Combined Forward-Backward Asymmetry Measurements in Top-Antitop Quark Production at the Tevatron",

abstract = "The CDF and D0 experiments at the Fermilab Tevatron have measured the asymmetry between yields of forward- and backward-produced top and antitop quarks based on their rapidity difference and the asymmetry between their decay leptons. These measurements use the full data sets collected in proton-antiproton collisions at a center-of-mass energy of s=1.96 TeV. We report the results of combinations of the inclusive asymmetries and their differential dependencies on relevant kinematic quantities. The combined inclusive asymmetry is AFBt{\=t}=0.128±0.025. The combined inclusive and differential asymmetries are consistent with recent standard model predictions.",

author = "\{CDF Collaboration\} and T. Aaltonen 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 S. Amerio and D. Amidei and A. Anastassov and A. Annovi and J. Antos and G. Apollinari and Appel, \{J. A.\} and T. Arisawa and A. Artikov and J. Asaadi and W. Ashmanskas and A. Askew and S. Atkins and B. Auerbach and K. Augsten and A. Aurisano and V. Aushev and Y. Aushev and C. Avila and F. Azfar and F. Badaud and W. Badgett and T. Bae and L. Bagby and B. Baldin and Bandurin, \{D. V.\} and S. Banerjee and A. Barbaro-Galtieri and E. Barberis and P. Baringer and Barnes, \{V. E.\} and Barnett, \{B. A.\} and P. Barria and Bartlett, \{J. F.\} and P. Bartos and U. Bassler and M. Bauce and V. Bazterra and Lee, \{S. W.\} and Moon, \{C. S.\}",

note = "Publisher Copyright: {\textcopyright} 2018 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the »https://creativecommons.org/licenses/by/4.0/» Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.",

year = "2018",

month = jan,

day = "24",

doi = "10.1103/PhysRevLett.120.042001",

language = "English",

volume = "120",

journal = "Physical Review Letters",

issn = "0031-9007",

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AU - CDF Collaboration

AU - Aaltonen, T.

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 - Amerio, S.

AU - Amidei, D.

AU - Anastassov, A.

AU - Annovi, A.

AU - Antos, J.

AU - Apollinari, G.

AU - Appel, J. A.

AU - Arisawa, T.

AU - Artikov, A.

AU - Asaadi, J.

AU - Ashmanskas, W.

AU - Askew, A.

AU - Atkins, S.

AU - Auerbach, B.

AU - Augsten, K.

AU - Aurisano, A.

AU - Aushev, V.

AU - Aushev, Y.

AU - Avila, C.

AU - Azfar, F.

AU - Badaud, F.

AU - Badgett, W.

AU - Bae, T.

AU - Bagby, L.

AU - Baldin, B.

AU - Bandurin, D. V.

AU - Banerjee, S.

AU - Barbaro-Galtieri, A.

AU - Barberis, E.

AU - Baringer, P.

AU - Barnes, V. E.

AU - Barnett, B. A.

AU - Barria, P.

AU - Bartlett, J. F.

AU - Bartos, P.

AU - Bassler, U.

AU - Bauce, M.

AU - Bazterra, V.

AU - Lee, S. W.

AU - Moon, C. S.

N1 - Publisher Copyright: © 2018 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the »https://creativecommons.org/licenses/by/4.0/» Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

PY - 2018/1/24

Y1 - 2018/1/24

N2 - The CDF and D0 experiments at the Fermilab Tevatron have measured the asymmetry between yields of forward- and backward-produced top and antitop quarks based on their rapidity difference and the asymmetry between their decay leptons. These measurements use the full data sets collected in proton-antiproton collisions at a center-of-mass energy of s=1.96 TeV. We report the results of combinations of the inclusive asymmetries and their differential dependencies on relevant kinematic quantities. The combined inclusive asymmetry is AFBtt̄=0.128±0.025. The combined inclusive and differential asymmetries are consistent with recent standard model predictions.

AB - The CDF and D0 experiments at the Fermilab Tevatron have measured the asymmetry between yields of forward- and backward-produced top and antitop quarks based on their rapidity difference and the asymmetry between their decay leptons. These measurements use the full data sets collected in proton-antiproton collisions at a center-of-mass energy of s=1.96 TeV. We report the results of combinations of the inclusive asymmetries and their differential dependencies on relevant kinematic quantities. The combined inclusive asymmetry is AFBtt̄=0.128±0.025. The combined inclusive and differential asymmetries are consistent with recent standard model predictions.

UR - https://www.scopus.com/pages/publications/85041216080

U2 - 10.1103/PhysRevLett.120.042001

DO - 10.1103/PhysRevLett.120.042001

M3 - Article

C2 - 29437406

AN - SCOPUS:85041216080

SN - 0031-9007

VL - 120

JO - Physical Review Letters

JF - Physical Review Letters

IS - 4

M1 - 042001

ER -

Combined Forward-Backward Asymmetry Measurements in Top-Antitop Quark Production at the Tevatron

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