Extracting Top Quark CP Violating Dipole Couplings via tbar tγ and tbar tZ Productions at the LHC

We propose to extract the electric and weak dipole moments of the top quark via $t\bar t\gamma$ and $t\bar t Z$ productions at the CERN LHC. With the large numbers of events available at the LHC, these dipole moments can be measured to the accuracy of $10^{-18}e cm$.