$e^{+}{e}^{-}\to t\bar{t}H$ with Non-standard Higgs Boson Couplings

Abstract

We consider a general effective Lagrangian for couplings of a Higgs boson to the top-quark to dimension-six operators including CP violation effects. Constraints on some of them are derived from the $Z\to b\bar{b}$ data. We study the process $e^{+}{e}^{-}\to t\bar{t}H$ to probe the non-standard couplings. We find that at a linear collider with a c. m. energy $\sqrt{s}\sim 0.5-1.5$ TeV and a high luminosity of 10-1000 fb${}^{-1}$, these non-standard couplings may be sensitively probed.

25 pages LaTeX file, 10 ps figures, 2 tables

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Cited by in corpus (16)

• Renormalization-Group-Improved Effective Potential for the MSSM Higgs Sector with Explicit CP Violation
• Higgs-Mediated Electric Dipole Moments in the MSSM: An Application to Baryogenesis and Higgs Searches
• CP Violation in Top Physics
• Effects of genuine dimension-six Higgs operators
• Electroweak radiative corrections to e+ e- -> t anti-t H
• Loop-Induced CP Violation in the Gaugino and Higgsino Sectors of Supersymmetric Theories
• Radiative corrections to Higgs-boson production in association with top-quark pairs at e+ e- colliders
• Electroweak phase transition in the standard model with a dimension-six Higgs operator at one-loop level
• Top-quark spin correlation at Linear Colliders with anomalous couplings
• Higgs Bosons from Top Quark Decays
• Top Yukawa coupling measurement with indefinite CP Higgs in $e^{+}{e}^{-}\to t\bar{t}\Phi$
• Fermionic Effective Operators and Higgs Production at a Linear Collider
• The littlest Higgs model and Higgs boson associated production with top quark pair at high energy linear $e^{+}{e}^{-}$ collider
• The anomalous Higgs-top couplings in the MSSM
• Dimension-six top-Higgs interaction and its effect in collider phenomenology
• Higgs production in association with top quark pair at e+e- colliders in theories of higher dimensional gravity