Measurement of the forward-backward charge asymmetry and extraction of $sin^2Theta^eff_W$ in $parp o Z/gamma^*_s16X o e^_s16e^-_s16X$ events produced at $sqrts=1.96$ TeV

Abstract

We present a measurement of the forward-backward charge asymmetry ($A_{FB}$) in $pbar{p} to Z/gamma^{*}_s16X to e^_s16e^-_s16X$ events at a center-of-mass energy of 1.96 TeV using 1.1 fb$^{-1}$ of data collected with the D0 detector at the Fermilab Tevatron collider. $A_{FB}$ is measured as a function of the invariant mass of the electron-positron pair, and found to be consistent with the standard model prediction. We use the $A_{FB}$ measurement to extract the effective weak mixing angle $sin^2Theta^{eff}_W = 0.2327 pm 0.0018 (stat.) pm 0.0006 (syst.)$.