Two Higgs Doublets Models and CP Violating Higgs Exchange in e+ e- -> t bar-t Z

Abstract

Appreciable CP Asymmetries (~ 10%) can arise in the reaction e+ e- -> t bar-t Z already at TREE-LEVEL in models with two Higgs doublets. For a neutral Higgs particle, h, with a mass in the range 50 GeV < m_h < 400 GeV, it may be possible to detect a 2-3 sigma CP-odd effect in e+ e- -> t bar-t Z in ~ 1-2 years of running of a future high energy e+e- collider with c.m. energies of ~ 1-2 TeV and an integrated luminosity of 200-500 inverse fb.

13 pages, 3 figures, plain latex (figures in separate files)

Cited by in corpus (11)

• CP Violation in Top Physics
• CP-violating ZZh Coupling at e+e- Linear Colliders
• Higgs CP properties using the tau decay modes at the ILC
• Determination of the Higgs CP mixing angle in the tau decay channels at the LHC including the Drell-Yan background
• Some consequences of a Higgs triplet
• Testing Top-Quark Yukawa Interactions in e+ e- -> t \bar{t} Z
• Diagnosing CP properties of the 2HDM
• One-loop QCD and electroweak corrections to $t\bar{t}{Z}^0$ production at an $e^{+}{e}^{-}$ linear collider
• Associated production of the $Z$ boson with a pair of top quarks in the left-right twin Higgs model
• Generic tests of CP-violation in high-$p_{\text{T}}$ multi-lepton signals at the LHC and beyond
• Observing CP-violating Higgs Signals with Heavy Majorana Neutrinos