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

Abstract

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.

33 pages, including figures; v2 some clarifying remarks, version to appear in Nucl. Phys. B

References in corpus (3)

• Decay-mode independent searches for new scalar bosons with the OPAL detector at LEP
• Two-Higgs-Doublet Models with CP violation
• Search for Neutral Higgs Bosons of the Minimal Supersymmetric Standard Model in e+e- Interactions at sqrt(s) up to 209 GeV

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