Testing Scalar-Sector CP Violation in Top-Quark Production and Decay at Linear e+e- Colliders

Details Testing Scalar-Sector CP Violation in Top-Quark Production and Decay at Linear e+e- Colliders Testing Scalar-Sector CP Violation in Top-Quark Production and Decay at Linear e+e- Colliders

2000-12-10

arxiv.org/abs/hep-ph/0012110v2

Phys.Rev.D63:115010,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

30 pages, LaTeX2e, BibTeX, phcpc_mcite.bst included, mcite, hyperref, minor esthetic changes

Scientific paper

10.1103/PhysRevD.63.115010

We consider a general two-Higgs-doublet model with CP violation in the scalar sector. Three neutral Higgs fields of the model all mix and the resulting physical Higgs bosons have no definite CP properties. That leads, at the one-loop level of the perturbation expansion, to CP-violating form factors for gamma-t-tbar, Z-t-tbar and W-t-b interaction vertices. We discuss asymmetries sensitive to CP violation induced by the form factors for the process e^+ e^- -> t tbar -> l^\pm ... and e^+ e^- -> t tbar -> b/bbar ... at future linear e+ e- colliders.

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