Hiding the Higgs Boson with Multiple Scalars

Abstract

We consider models with multiple Higgs scalar gauge singlets and the resulting restrictions on the parameters from precision electroweak measurements. In these models, the scalar singlets mix with the SU(2) Higgs doublet, potentially leading to reduced couplings of the scalars to fermions and gauge bosons relative to the Standard Model Higgs boson couplings. Such models can make the Higgs sector difficult to explore at the LHC. We emphasize the new physics resulting from the addition of at least two scalar Higgs singlets.

13 pages

References in corpus (7)

• LHC Phenomenology of an Extended Standard Model with a Real Scalar Singlet
• Singlet Higgs Phenomenology and the Electroweak Phase Transition
• Complex Singlet Extension of the Standard Model
• Minimal Extension of the Standard Model Scalar Sector
• Nonstandard Higgs Boson Decays
• The Private Higgs
• Universal Doublet-Singlet Higgs Couplings and phenomenology at the CERN Large Hadron Collider