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

Department of Physics

Research output: Contribution to journal › Article

15 Citations (Scopus)

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
Publication status	Published - 2018 Jan 24

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1103/PhysRevLett.120.042001

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CDF Collaboration (2018). Combined Forward-Backward Asymmetry Measurements in Top-Antitop Quark Production at the Tevatron. Physical review letters, 120(4), [042001]. https://doi.org/10.1103/PhysRevLett.120.042001

@article{e5bd51752015405b9a617c049902a9d2,

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 A. Bean and F. Bedeschi and S. Choi and Park, {S. K.}",

year = "2018",

month = jan,

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doi = "10.1103/PhysRevLett.120.042001",

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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 - Bean, A.

AU - Bedeschi, F.

AU - Choi, S.

AU - Park, S. K.

PY - 2018/1/24

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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.

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