Abstract
CP violation in top physics is reviewed. The standard model has negligible effects, consequently CP violation searches involving the top quark may constitute the best way to look for physics beyond the standard model. Non-standard sources of CP violation due to an extended Higgs sector with and without natural flavor conservation and supersymmetric theories are discussed. Experimental feasibility of detecting CP violation effects in top quark production and decays in high energy e + e −, γγ, μ + μ −, pp and p p ̄ colliders are surveyed. Searches for the electric, electro-weak and the chromo-electric dipole moments of the top quark in e +e −→t t ̄ and in pp→t t ̄ X are described. In addition, other mechanisms that appear promising for experiments, e.g., tree-level CP violation in e +e −→t t ̄ h, t t ̄ Z, t t ̄ ν e ν ̄ e and in the top decay t→ bτν τ and CP violation driven by s-channel Higgs exchanges in pp, γγ, μ +μ −→t t ̄ , etc. are also discussed.
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