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arxiv: hep-ph/0302004 · v2 · pith:7A67MAOVnew · submitted 2003-02-01 · ✦ hep-ph

CP violation in top quark production at the LHC and Two-Higgs-Doublet Models

Wafaa Khater , Per Osland This is my paper
classification ✦ hep-ph
keywords higgsmodelsproductionsmalltwo-higgs-doubletunlessviolationasymmetry
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We discuss CP violation in top-antitop production at the LHC, induced by gluon fusion and final-state Higgs exchange. Results by Bernreuther and Brandenburg are confirmed and further reduced. The lepton energy asymmetry is studied in detail in explicit Two-Higgs-Doublet Models with near-maximal mixing in the neutral Higgs sector. Unless there is only one light Higgs particle, and unless (in Model II) tanbeta \lsim 1, the CP-violating effects are very small, possibly too small to be seen at the LHC.

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