A Seesaw Mechanism in the Higgs Sector

Abstract

In this letter we revisit the seesaw Higgs mechanism. We show how a seesaw mechanism in a two Higgs doublets model can trigger the electroweak symmetry breaking if at least one of the eigenvalues of the squared mass matrix is negative. We then consider two special cases of interest. In the decoupling scenario, there is only one scalar degree of freedom in the low energy regime. In the degenerate scenario, all five degrees of freedom are in the low energy regime and will lead to observables effects at the LHC. Furthermore, in that scenario, it is possible to impose a discrete symmetry between the doublets that makes the extra neutral degrees of freedom stable. These are thus viable dark matter candidates. We find an interesting relation between the electroweak symmetry breaking mechanism and dark matter.

arXiv comment10 pages

References in corpus (24)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• de Sitter Vacua in String Theory
• Quantization of Four-form Fluxes and Dynamical Neutralization of the Cosmological Constant
• Improved Naturalness with a Heavy Higgs: An Alternative Road to LHC Physics
• The statistics of string/M theory vacua
• The Anthropic Landscape of String Theory
• Distributions of flux vacua
• CompHEP 4.4 - Automatic Computations from Lagrangians to Events
• Higgs-field Portal into Hidden Sectors
• Top Quark Seesaw Theory of Electroweak Symmetry Breaking
• Electroweak Symmetry Breaking via Top Condensation Seesaw
• CompHEP - a package for evaluation of Feynman diagrams and integration over multi-particle phase space. User's manual for version 33
• A Note on Doubly-Charged Higgs Pair Production at Hadron Colliders
• Top Quark Seesaw, Vacuum Structure and Electroweak Precision Constraints
• Modifications to the Properties of the Higgs Boson
• Common Origin of Neutrino Mass, Dark Matter, and Baryogenesis
• The minimal non-minimal standard model
• Seesaw induced Higgs Mechanism
• A higher dimensional explanation of the excess of Higgs-like events at CERN LEP
• Improved Naturalness and the Two Higgs Doublet Model
• Softening the Naturalness Problem
• Minimal Grand Unification Model in an Anthropic Landscape
• Seesaw induced electroweak scale, the hierarchy problem and sub-eV neutrino masses
• The $\mu$-Problem and Seesaw-type Mechanism in the Higgs Sector

Cited by in corpus (15)

• The Inert Doublet Model: an Archetype for Dark Matter
• Heavy Dark Matter Through the Higgs Portal
• Electroweak Symmetry Breaking induced by Dark Matter
• Type II seesaw mechanism for Higgs doublets and the scale of new physics
• Effective Theory for Dark Matter and a New Force in the Dark Matter Sector
• A Higgs--Saw Mechanism as a Source for Dark Energy
• Unparticle-Higgs Mixing: MSW Resonances, See-saw Mechanism and Spinodal Instabilities
• Leptogenesis, Dark Matter and Higgs Phenomenology at TeV
• Dark matter as a localized scalar in the extra dimension
• Bosonic Seesaw in the Unparticle Physics
• A solution to the mu problem in the supersymmetric unparticle physics
• Lowest Landau Level of Relativistic Field Theories in a Strong Background Field
• Phase structure and phase transitions of the SU(2) x O(N) symmetric scalar field theory
• The effect of the curvature-scalar mixing on the annihilation cross sections of dark matter scalar and unparticle dark matter
• Annihilation cross sections and interaction couplings of the dark matter candidates in the warped and flat extra dimensions