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 root 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 A(FB)(t (t) over bar) = 0.128 +/- 0.025. The combined inclusive and differential asymmetries are consistent with recent standard model predictions.

Combined forward-backward asymmetry measurements in top-antitop quark production at the Tevatron / Aaltonen, T., Abazov, V.M., Abbott, B., Acharya, B.S., Adams, M., Adams, T., Agnew, J.P., Alexeev, G.D., Alkhazov, G., Alton, A., Amerio, S., Amidei, D., Anastassov, A., Annovi, A., Antos, J., Apollinari, G., Appel, J.A., Arisawa, T., Artikov, A., Asaadi, J., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 120:4(2018). [10.1103/PhysRevLett.120.042001]

Combined forward-backward asymmetry measurements in top-antitop quark production at the Tevatron

Giagu, S.;Iori, M.;
2018

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 root 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 A(FB)(t (t) over bar) = 0.128 +/- 0.025. The combined inclusive and differential asymmetries are consistent with recent standard model predictions.
2018
CDF; Tevatron; top-quark
01 Pubblicazione su rivista::01a Articolo in rivista
Combined forward-backward asymmetry measurements in top-antitop quark production at the Tevatron / Aaltonen, T., Abazov, V.M., Abbott, B., Acharya, B.S., Adams, M., Adams, T., Agnew, J.P., Alexeev, G.D., Alkhazov, G., Alton, A., Amerio, S., Amidei, D., Anastassov, A., Annovi, A., Antos, J., Apollinari, G., Appel, J.A., Arisawa, T., Artikov, A., Asaadi, J., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 120:4(2018). [10.1103/PhysRevLett.120.042001]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1216351
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