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Higgs sector contributions to Δa_μand the constraints on two-Higgs-doublet-model with and without SUSY

Otto C. W. Kong
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Abstract

Interesting contributions to $Δa_μ$ from a two-Higgs-doublet-model is coming from a two-loop Barr-Zee diagram for most part of the parameter space -- a fact that has been overlooked by some Higgs/SUSY experts. A definite positive contribution has requirements that go against precision EW data and other known constraints. For the case without SUSY, in particular, this is almost enough to kill the two-Higgs-doublet-model (II). We will discuss the interplay of all the constraints and their implications.

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Otto C. W. Kong. 2004-02-01. Higgs sector contributions to Δa_μand the constraints on two-Higgs-doublet-model with and without SUSY. https://arxiv.org/abs/hep-ph/0402010

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