Search for Stop Pair Production in the Stop -> Chargino B and the Stop -> Neutralino Top Decay Modes

A search for stop pair production with the CMS detector in the decay modes stop -> chargino b (chargino -> W neutralino) and stop -> top neutralino is performed with a fast detector simulation. The signal final state contains two neutralinos, two W's and two b quarks. The resulting missing transverse energy, leptons and jets with large transverse momentum and tracks with large impact parameters allow the signal to be effectively separated from the standard model backgrounds. More work is required to reject the background from other supersymmetric production processes.