Supersonic Electroweak Baryogenesis: Achieving Baryogenesis for Fast Bubble Walls

Abstract

Standard electroweak baryogenesis in the context of a first order phase transition is effective in generating the baryon asymmetry of the universe if the broken phase bubbles expand at subsonic speed, so that CP asymmetric currents can diffuse in front of the wall. Here we present a new mechanism for electroweak baryogenesis which operates for supersonic bubble walls. It relies on the formation of small bubbles of the symmetric phase behind the bubble wall, in the broken phase, due to the heating of the plasma as the wall passes by. We apply the mechanism to a model in which the Higgs field is coupled to several singlets, and find that enough baryon asymmetry is generated for reasonable values of the parameter space.

References in corpus (15)

• Gravitational Wave Production by Collisions: More Bubbles
• Singlet Higgs Phenomenology and the Electroweak Phase Transition
• Gravitational Waves from Phase Transitions at the Electroweak Scale and Beyond
• Strong Electroweak Phase Transitions in the Standard Model with a Singlet
• Gravitational wave generation from bubble collisions in first-order phase transitions: an analytic approach
• Novel Effects in Electroweak Breaking from a Hidden Sector
• The Baryogenesis Window in the MSSM
• Cosmological Consequences of Nearly Conformal Dynamics at the TeV scale
• Production of Gravitational Waves in the nMSSM
• Natural Cold Baryogenesis from Strongly Interacting Electroweak Symmetry Breaking
• Hydrodynamic obstruction to bubble expansion
• Numerical Approach to Multi Dimensional Phase Transitions
• Limits on the production of the Standard Model Higgs Boson in pp collisions at sqrt(s) =7 TeV with the ATLAS detector
• Resonant Flavor Oscillations in Electroweak Baryogenesis
• Vacuum (Meta)Stability Beyond the MSSM

Cited by in corpus (26)

• Science with the space-based interferometer eLISA. II: Gravitational waves from cosmological phase transitions
• Gravitational waves from a first order electroweak phase transition: a brief review
• A strong electroweak phase transition in the 2HDM after LHC8
• A unified explanation for dark matter and electroweak baryogenesis with direct detection and gravitational wave signatures
• Probing the Electroweak Phase Transition with Higgs Factories and Gravitational Waves
• Bubble Expansion and the Viability of Singlet-Driven Electroweak Baryogenesis
• Gravitational waves and electroweak baryogenesis in a global study of the extended scalar singlet model
• Non-resonant Collider Signatures of a Singlet-Driven Electroweak Phase Transition
• Strong First Order EWPT and Strong Gravitational Waves in $Z_3$-symmetric Singlet Scalar Extension
• Gravitational Waves, baryon asymmetry of the universe and electric dipole moment in the CP-violating NMSSM
• The bubble wall velocity in the minimal supersymmetric light stop scenario
• Cosmological Signatures of a UV-Conformal Standard Model
• Solitosynthesis and Gravitational Waves
• Exotic Gravitational Wave Signatures from Simultaneous Phase Transitions
• Gravitational Waves from the Phase Transition of a Non-linearly Realised Electroweak Gauge Symmetry
• Stability of cosmological deflagration fronts
• Stability of cosmological detonation fronts
• The hydrodynamics of inverse phase transitions
• Hydrodynamic effects on the filtered dark matter produced by a first-order phase transition
• Inverse bubbles from broken supersymmetry
• Phenomenology of electroweak bubbles and gravitational waves in the Littlest Higgs Model with T parity
• Hydrodynamics of Relativistic Superheated Bubbles
• Baryogenesis via relativistic bubble expansion
• Gravitational waves from the sound shell model: direct and inverse phase transitions in the early Universe
• Baryogenesis via relativistic bubble walls
• Super-heated first order phase transitions