Singlet Higgs Phenomenology and the Electroweak Phase Transition

Abstract

We study the phenomenology of gauge singlet extensions of the Standard Model scalar sector and their implications for the electroweak phase transition. We determine the conditions on the scalar potential parameters that lead to a strong first order phase transition as needed to produce the observed baryon asymmetry of the universe. We analyze the constraints on the potential parameters derived from Higgs boson searches at LEP and electroweak precision observables. For models that satisfy these constraints and that produce a strong first order phase transition, we discuss the prospective signatures in future Higgs studies at the Large Hadron Collider and a Linear Collider. We argue that such studies will provide powerful probes of phase transition dynamics in models with an extended scalar sector.

36 pages, 13 figures, matches published version; Version with higher resolution figures available at http://www.its.caltech.edu/~profumo/higgs/EWPT.pdf

References in corpus (4)

• Sterile neutrinos, dark matter, and the pulsar velocities in models with a Higgs singlet
• Minimal Extension of the Standard Model Scalar Sector
• What is the Criterion for a Strong First Order Electroweak Phase Transition in Singlet Models?
• Collider Signatures of Singlet Extended Higgs Sectors

Cited by in corpus (17)

• LHC Phenomenology of an Extended Standard Model with a Real Scalar Singlet
• Complex Singlet Extension of the Standard Model
• Dark-matter sterile neutrinos in models with a gauge singlet in the Higgs sector
• A precision constraint on multi-Higgs-doublet models
• Dynamics of Non-renormalizable Electroweak Symmetry Breaking
• Nonstandard Higgs Boson Decays
• Singlet fermionic dark matter
• Higgs Self-Coupling as a Probe of Electroweak Phase Transition
• Four Generations, the Electroweak Phase Transition, and Supersymmetry
• Small-scale structure formation properties of chilled sterile neutrinos as dark matter
• Electroweak Phase Transition and LHC Signatures in the Singlet Majoron Model
• Higgs-Higgsino-Gaugino Induced Two Loop Electric Dipole Moments
• Spin Dependence of Dark Matter Scattering
• Hiding the Higgs Boson with Multiple Scalars
• Pion Leptonic Decays and Supersymmetry
• Cosmic rays through the Higgs portal
• Universal Doublet-Singlet Higgs Couplings and phenomenology at the CERN Large Hadron Collider