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

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

1999-08-03

arxiv.org/abs/hep-ph/9908236v1

Phys.Rev. D61 (2000) 015006

Physics

High Energy Physics

High Energy Physics - Phenomenology

25 pages LaTeX file, 10 ps figures, 2 tables

Scientific paper

10.1103/PhysRevD.61.015006

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.

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