Study of hadronic W decays in the Jets+MET final state

We present a systematic study of hadronic W decays in the Jets+MET final state to characterize the supersymmetry signal at the LHC. Because of the complicated end point, the experimental question leads to detection of the Standard Model W bosons (and eventually detecting top quark) in Jets+MET final state. We will discuss a data-driven method to extract W event inclusively in the hadronic decays from a minimal super gravity process, on the basis of Monte Carlo data.