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CP violation in top pair production at an e^+e^- collider

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arxiv hep-ph/9209267 v1 pith:4NDGRVRV submitted 1992-09-23 hep-ph

Darwin Chang , Wai-Yee Keung , Ivan Phillips This is my paper · ORCID
classification hep-ph
keywords productionannihilationassumebosoncolliderconjugatecontaincouplings
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abstract

We investigate a possible CP violating effect in $e^+e^-$ annihilation into $t\bar t$ top quark pairs. As an illustrative example, we assume the source of the CP nonconservation is in the Yukawa couplings of a neutral Higgs boson which contain both scalar and pseudoscalar pieces. One of the interesting observable effects is the difference in production rates between the two CP conjugate polarized $t\bar t$ states.

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  1. $CP$ violation in the $HZZ$ vertex and left-right asymmetries

    hep-ph 2025-01 conditional novelty 5.0 of 10

    Flavor-changing Z and Higgs couplings can induce CP-violating HZZ form factors up to about 10^-7, and a new asymmetry in Z* -> Z H is proposed to search for them.

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