SEARCH FOR NEW MECHANISM OF CP VIOLATION THROUGH DECAY OF LEPTONS ANDSEMILEPTONIC DECAY OF HADRONS

If CP is violated in any decay process involving leptons it will signi fy the existence of a new scalar boson (called the X boson) responsibl e for CP violation that may be the key to understanding matter-antimat ter asymmetry in the universe. We discuss the signatures of CP violati on in (1) the decay of tau and mu leptons, and (2) the semileptonic de cay of pi, K, D, B and t particles by measuring the polarization of th e charged lepton in the decay. We discuss how the coupling constants a nd their phases of the coupling of the X boson to 9 quark vertices and 3 lepton vertices can be obtained through 12 decay processes.