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

Aaltonen, T. and Abazov, V. M. and Abbott, B. and Acharya, B. S. and Adams, M. and Adams, T. and Agnew, J. P. and Alexeev, G. D. and Alkhazov, G. and Alton, A. and Amerio, S. and Amidei, D. and Anastassov, A. and Annovi, A. and Antos, J. and Apollinari, G. and Appel, J. A. and Arisawa, T. and Artikov, A. and Asaadi, J. and Ashmanskas, W. and Askew, A. and Atkins, S. and Auerbach, B. and Augsten, K. and Aurisano, A. and Aushev, V. and Aushev, Y. and Avila, C. and Azfar, F. and Badaud, F. and Badgett, W. and Bae, T. and Bagby, L. and Baldin, B. and Bandurin, D. V. and Barbaro-Galtieri, A. and Barberis, E. and Baringer, P. and Barnes, V. E. and Barnett, B. A. and Barria, P. and Bartlett, J. F. and Bertram, I. and Borissov, G. and Fox, H. and Price, D. and Ratoff, P. N. and Ross, A. and Williams, M. R. J. (2018) Combined Forward-Backward Asymmetry Measurements in Top-Antitop Quark Production at the Tevatron. Physical review letters, 120. ISSN 1079-7114

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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 Att(FB) = 0.128 ± 0.025. The combined inclusive and differential asymmetries are consistent with recent standard model predictions.

Item Type:
Journal Article
Journal or Publication Title:
Physical review letters
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100
Subjects:
ID Code:
124030
Deposited By:
Deposited On:
13 Mar 2018 09:10
Refereed?:
Yes
Published?:
Published
Last Modified:
05 Jun 2020 04:22