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Challenges For Non-Minimal Higgs Searches at Future Colliders

Howard E. Haber
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Abstract

In models with a non-minimal Higgs sector, the lightest scalar state may be a neutral CP-even Higgs boson, whose properties are nearly identical to those of the minimal Higgs boson of the Standard Model. In such a scenario, the other Higgs scalars are significantly heavier than $m_Z$; their effects rapidly decouple from the low-energy theory. The decoupling limit of the most general CP-conserving two-Higgs doublet model is formulated. Detection of evidence for a non-minimal Higgs sector in the decoupling limit presents a formidable challenge for Higgs searches at future colliders.

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Howard E. Haber. 1995-05-05. Challenges For Non-Minimal Higgs Searches at Future Colliders. https://arxiv.org/abs/hep-ph/9505240

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