Electroweak Baryogenesis and New TeV Fermions

Abstract

New fermions, strongly coupled to the Standard Model Higgs boson provide a well motivated extension of the Standard Model (SM). In this work we show that, once new physics at heavier scales is added to stabilize the Higgs potential, such an extension of the SM can strengthen the first order electroweak phase transition and make the electroweak baryogenesis mechanism feasible. We propose a SM extension with TeV Higgsinos, Winos and Binos that satisfy the following properties: a) The electroweak phase transition is strong enough to avoid sphaleron erasure in the broken phase for values of the Higgs mass mH < 300 GeV; b) It provides large CP-violating currents that lead to the observed baryon asymmetry of the Universe for natural values of the CP-violating phase; c) It also provides a natural Dark Matter candidate that can reproduce the observed dark matter density; d) It is consistent with electroweak precision measurements; e) It may arise from a softly broken supersymmetric theory with an extra (asymptotically free) gauge sector; e) It may be tested by electron electric dipole moment experiments in the near future.

LateX, 40 pages, 12 embedded postscript figures. A discussion of the stability of the Higgs potential and its connection to a possible ultraviolet completion of the model has been added

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• Probing the Electroweak Phase Transition with Higgs Factories and Gravitational Waves
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• Less space for a new family of fermions
• The 125 GeV Higgs and Electroweak Phase Transition Model Classes
• Filtered Dark Matter at a First Order Phase Transition
• How much space is left for a new family?
• Precision Constraints on Extra Fermion Generations
• Fermi-ball dark matter from a first-order phase transition
• First principles determination of bubble wall velocity
• The Supersymmetric Origin of Matter
• Higgs Couplings and Electroweak Phase Transition
• Probing the Electroweak Phase Transition at the LHC
• Baryogenesis, Electric Dipole Moments and Dark Matter in the MSSM
• High Scale Electroweak Phase Transition: Baryogenesis & Symmetry Non-Restoration
• Interpreting the Electron EDM Constraint
• Gravitational waves from the electroweak phase transition
• Velocity of electroweak bubble walls
• Four Generations, the Electroweak Phase Transition, and Supersymmetry
• Anatomy of F_D-Term Hybrid Inflation
• Gravitational waves from the asymmetric-dark-matter generating phase transition
• Sommerfeld corrections to type-II and III leptogenesis
• Dark energy, the electroweak vacua and collider phenomenology
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• Inflatable Dark Matter
• Electroweak Phase Transition and LHC Signatures in the Singlet Majoron Model
• Yukawa and Tri-scalar Processes in Electroweak Baryogenesis
• Exotic Higgs Decays and the Electroweak Phase Transition
• Constraints on Mass Spectrum of Fourth Generation Fermions and Higgs Bosons
• Multistep Strongly First Order Phase Transitions from New Fermions at the TeV Scale
• Scalar Representations in the Light of Electroweak Phase Transition and Cold Dark Matter Phenomenology
• Flavour models with Dirac and fake gluinos
• Hydrodynamics of phase transition fronts and the speed of sound in the plasma
• Doublet-Triplet Fermionic Dark Matter
• Constraints on the Four-Generation Quark Mixing Matrix from a Fit to Flavor-Physics Data
• The Dark Side of the Electroweak Phase Transition
• Electroweak Phase Transition, Higgs Diphoton Rate, and New Heavy Fermions
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• Detonations and deflagrations in cosmological phase transitions
• Charged Fermions Below 100 GeV
• Supercooling and phase coexistence in cosmological phase transitions
• Flavor Cosmology: Dynamical Yukawas in the Froggatt-Nielsen Mechanism
• Electroweak baryogenesis via bottom transport
• Baryogenesis from an Earlier Phase Transition
• Dynamical Electroweak Symmetry Breaking with a Heavy Fourth Generation
• A First-Order Electroweak Phase Transition from Varying Yukawas
• Beyond MSSM Baryogenesis
• Proton Lifetime and Baryon Number Violating Signatures at the LHC in Gauge Extended Models
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• Electroweak Baryogenesis in R-symmetric Supersymmetry
• Controlling the fine-tuning problem with singlet scalar dark matter
• Higgs data confronts Sequential Fourth Generation Fermions in the Higgs Triplet Model
• Implications of Canonical Gauge Coupling Unification in High-Scale Supersymmetry Breaking
• On the Higgs Fit and Electroweak Phase Transition
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• Fermion dark matter from SO(10)
• The minimal fermionic model of electroweak baryogenesis
• Electroweak Phase Transition in the U(1)' MSSM
• $SU(2)\otimes SU(2)$ Gauge Extensions of the MSSM Revisited
• Baryogenesis and Dark Matter with Vector-like Fermions
• Phenomenology of doublet-triplet fermionic dark matter in nonstandard cosmology and multicomponent dark sectors
• Higgs Boson Production via Gluon Fusion in the Standard Model with four Generations
• Higgs-Yukawa model in chirally-invariant lattice field theory
• The Higgs Portal Above Threshold
• Constraining a fourth generation of quarks: non-perturbative Higgs boson mass bounds
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• Higgs potential and fundamental physics
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• Compact objects in and beyond the Standard Model from non-perturbative vacuum scalarization
• Fourth Generation Majorana Neutrinos
• F_D-Term Hybrid Inflation with Electroweak-Scale Lepton Number Violation
• Electroweak Symmetry Breaking and WIMP-FIMP Dark Matter
• Effective Theory for Electroweak Doublet Dark Matter
• Electroweak phase transition triggered by fermion sector
• Dark energy from coexistence of phases
• Electroweak Baryogenesis, Large Yukawas and Dark Matter
• (O)Mega Split
• Electric Dipole Moments, New Forces and Dark Matter
• Standard Model CP-violation and Cold Electroweak Baryogenesis
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• Electroweak phase transition in a model with gauged lepton number
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