Measurement of the Top Quark Charge at D\O

We report on a measurement of the charge of the top quark by resolving the kinematic ambiguity between the standard model scenario of a charge 2/3 quark decaying to $W^{+}b$ and an exotic scenario of a charge -4/3 quark decaying to $W^{-}b$. We distinquish between the two scenarios by measuring the charge of the $b$ jet that is kinematically most consistent with arising from the same top quark as the charged lepton.