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 AFBttÌ=0.128Â±0.025. The combined inclusive and differential asymmetries are consistent with recent standard model predictions.
|Titolo:||Combined forward-backward asymmetry measurements in top-antitop quark production at the tevatron|
|Appare nelle tipologie:||1.1 Articolo in rivista|