Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2004-11-17
Phys.Rev.D71:052002,2005
Physics
High Energy Physics
High Energy Physics - Experiment
LaTeX2e file 30 pages 27 figures (35 eps files) Submitted to Phys.Rev.D
Scientific paper
10.1103/PhysRevD.71.052002
We present a measurement of the mass dependence of the forward-backward charge asymmetry (A_{FB}) for electron-positron pairs produced via an intermediate Z/gamma with mass Mee > 40 GeV/c**(2). We study the constraints on the Z-quark couplings imposed by our measurement. We analyze an integrated luminosity of 72 pb-1 collected by the CDF II detector in proton anti-proton collisions at s**(1/2) = 1.96 TeV at the Fermilab Tevatron. A comparison of the uncorrected A_{FB} between data and Standard Model Monte Carlo gives good agreement with a chi^2/DOF of 15.7/15. The couplings measurements are also consistent with Standard Model predictions.
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