Study of Top-quark Production and Decay Vertices with LCD Fast Simulation

We report a study of top-quark reconstruction in $e^+e^- \rightarrow t\bar{t}$ events at a 500 GeV linear collider using the LCD Fast simulator. The initial study of top-quark anomalous couplings is also reported. The final states of 4 jets and lepton as well as 6 jets are used. Using the 4 jets and lepton final state, we estimate the preliminary sensitivities for form factors at the $\gamma/Z^0 t\bar{t}$ vertex. In the 6 jets reconstruction, we show abilities of the top-quark charge identification and the $c$-quark tagging in W decays.