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Strongly interacting singlet-doublet Higgs model
Phys. Rev. D 36, 3463 – Published 1 December, 1987
DOI: https://doi.org/10.1103/PhysRevD.36.3463
Abstract
We study the effects on the vector-boson parameters due to a heavy scalar singlet interacting strongly with the Higgs sector of the standard model. The one-loop-induced effects due to the additional scalar are not suppressed by inverse powers of its mass. In the limit that the singlet-Higgs coupling becomes much larger than the Higgs self-coupling, the 4W vertex differs from that in the standard model. In this limit the leading corrections are not related to the divergences of the gauged nonlinear σ model.
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