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Testing Scalar-Sector CP Violation in Top-Quark Production and Decay at Linear e+e- Colliders
Bohdan Grzadkowski, Jacek Pliszka
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 n…
Do precision electroweak constraints guarantee $\epem$ collider discovery of at least one Higgs boson of a type-II two-Higgs-doublet model?
John F. Gunion
The manner in which the parameters of a two-Higgs-doublet model can be chosen so that no Higgs boson is discovered at a $\sqrt{s}\leq 800\gev$ $\epem$ collider, while maintaining c…
Do precision electroweak constraints guarantee collider discovery of at least one Higgs boson of a two-Higgs-doublet model?
P. Chankowski, T. Farris, B. Grzadkowski +3
We consider a CP-conserving two-Higgs-doublet type II model with a light scalar or pseudoscalar neutral Higgs boson ($\h=\hl$ or $\h=\ha$) that has no coupling and, thus, c…
Testing CP Violation in the Higgs Sector at Muon Colliders
Bohdan Grzadkowski, John F. Gunion, Jacek Pliszka
We study the possibility of measuring the muon Yukawa couplings in s-channel Higgs boson production at a muon collider with transversely polarized beams. We investigate sensitivity…
Extra Dimension Kaluza-Klein Excitations and Electroweak Symmetry Breaking
J. F. Gunion, B. Grzadkowski
We review the possibilities that the Kaluza-Klein excitations of graviton states induce electroweak symmetry breaking and that electroweak symmetry breaking could have a large impa…
Measuring the relative CP-even and CP-odd Yukawa couplings of a Higgs boson at a muon-collider Higgs factory
Bohdan Grzadkowski, John F. Gunion, Jacek Pliszka
We study a possibility of a measurement of muon Yukawa couplings in s-channel Higgs boson production at a muon collider with transversely polarized beams. We investigate sensitivit…