In a framework of the renormalizable theory of weak interaction, problems of CP-violation are studied. It is concluded that no realistic models of CP-violation exist in the quartet scheme without introducing any other new fields. Some possible models of CP-violation are also discussed.
In a framework of the renormalizable theory of weak interaction, problems of CP-violation are studied. It is concluded that no realistic models of CP-violation exist in the quartet scheme without introducing any other new fields. Some possible models of CP-violation are also discussed.
We examine the production and decay of a supersymmetric scalar top i t at e 'e colliders such as TRISTAN at KEK, the Stanford Linear Collider, and LEP at CERN, based on supersymmetric models with soft breaking. Existing bounds for supersymmetric particles imply that T I in the energy range of these colliders would be lighter than other scalar quarks and than the top quark. We make a careful study of available TI decay modes in this scenario. The flavor-changing decay il -cp is found to proceed through the misalignment of the scalar-quark and quark mixing matrices. If the three-body decay i; +bl+? is kinematically accessible it dominates the two-body decay. The decay Tl-bv7+ is even larger due to different chirality structure, but is likely to suffer from a large phasespace suppression. Four-body decays are negligible. The & pair production cross section including the y and Z contribution and the left-right mixing is presented.
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