Speaker
Mr
Glenn Strycker
(University of Michigan)
Description
We measure a forward-backward charge asymmetry in the rapidities of top quarks produced in $p\bar p$ collisions at $\sqrt s$=1.96 TeV. The $t\bar t$ kinematics are reconstructed in ~800 lepton+jets events collected in a 3 $fb^{-1}$ exposure with CDF detector at Fermilab. We present two independent techniques -- a model independent unfold and a likelihood fit to a linear asymmetry in the production angle $(1+Acos(\alpha))$ -- that give consistent results for the parton level asymmetry in both the laboratory and $t\bar t$ rest frames. The results are compared to the small charge asymmetry expected in QCD at NLO.
Author
Mr
Glenn Strycker
(University of Michigan)
