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.

Aaltonen, T., Abazov, V.M., Abbott, B., Acharya, B.S., Adams, M., Adams, T., et al. (2018). Combined forward-backward asymmetry measurements in top-antitop quark production at the tevatron. PHYSICAL REVIEW LETTERS, 120(4) [10.1103/PhysRevLett.120.042001].

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

Maestro, P.;
2018-01-01

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.
2018
Aaltonen, T., Abazov, V.M., Abbott, B., Acharya, B.S., Adams, M., Adams, T., et al. (2018). Combined forward-backward asymmetry measurements in top-antitop quark production at the tevatron. PHYSICAL REVIEW LETTERS, 120(4) [10.1103/PhysRevLett.120.042001].
File in questo prodotto:
File Dimensione Formato  
PhysRevLett.120.042001.pdf

accesso aperto

Descrizione: PRL120_042001
Tipologia: PDF editoriale
Licenza: Creative commons
Dimensione 843.41 kB
Formato Adobe PDF
843.41 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/1036078