Generation of baryon inhomogeneities in the electroweak phase transition
arXiv:hep-ph/0409321 · doi:10.1103/PhysRevD.71.023502
Abstract
It is known that baryon number inhomogeneities may arise as a consequence of electroweak baryogenesis. Their geometry, size, and amplitude depend on the parameters that characterize the baryogenesis mechanism, as well as on those that determine the phase transition dynamics. We investigate this parametric dependance. We show that in the case of the minimal supersymmetric standard model, the geometry of the inhomogeneities most probably consists of spherical regions of high density surrounded by low-density walls, in contrast to the case of the minimal standard model. In this supersymmetric extension we find that density contrasts of up to a factor of 100 may arise. This amplitude increases for higher values of the latent heat or lower values of the bubble wall tension, and can be significantly larger in different extensions of the standard model. Such inhomogeneities may thus affect the dynamics of the subsequent quark-hadron phase transition.
26 pages, 8 figures. Revised version, accepted for publication in Phys.Rev.D. Discussion on the effects on the quark-hadron phase transition improved and expanded; other explanatory comments and references added
References in corpus (47)
- Progress in Electroweak Baryogenesis
- Lattice determination of the critical point of QCD at finite T and μ
- Recent Progress in Baryogenesis
- On the Phase Diagram of QCD
- Towards the Theory of Cosmological Phase Transitions
- A new method to study lattice QCD at finite temperature and chemical potential
- First-Order Electroweak Phase Transition in the Standard Model with a Low Cutoff
- Opening the Window for Electroweak Baryogenesis
- How fast can the wall move? A study of the electroweak phase transition dynamics
- Electroweak Baryogenesis and Dark Matter in the nMSSM
- The Growth of Bubbles in Cosmological Phase Transitions
- Electroweak Baryogenesis in Supersymmetric Models
- Chern-Simons Number Diffusion and Hard Thermal Loops on the Lattice
- Supersymmetric Electroweak Baryogenesis
- Electroweak Baryogenesis and Higgs and Stop Searches at LEP and the Tevatron
- Improved Results in Supersymmetric Electroweak Baryogenesis
- Finite temperature field theory and phase transitions
- The Electroweak Phase Transition in a Nonminimal Supersymmetric Model
- Bubble Wall Velocity at the Electroweak Phase Transition
- Supersymmetric CP-violating Currents and Electroweak Baryogenesis
- Non-local Electroweak Baryogenesis Part II : The Classical Regime
- Electroweak Baryogenesis from a Classical Force
- Supersymmetric Electroweak Phase Transition: Baryogenesis versus Experimental Constraints
- The baryogenesis window in the MSSM
- Sphaleron rate in the symmetric electroweak phase
- Do Stops Slow Down Electroweak Bubble Walls?
- Diffusion Enhances Spontaneous Electroweak Baryogenesis
- A New Source for Electroweak Baryogenesis in the MSSM
- Hydrodynamic Stability Analysis of Burning Bubbles in Electroweak Theory and in QCD
- Two Higgs doublet dynamics at the electroweak phase transition: a non-perturbative study
- Classical Sphaleron Rate on Fine Lattices
- The Electroweak Phase Transition in a Magnetic Field
- The Effects of Electro-weak Phase Transition Dynamics on Baryogenesis and Primordial Nucleosynthesis
- Large Scale Inhomogeneities from the QCD Phase Transition
- Large nucleation distances from impurities in the cosmological quark-hadron transition
- Real-Time History of the Cosmological Electroweak Phase Transition
- The Evolution of Non-Linear Sub-Horizon Scale Entropy Fluctuations in the Earlu Universe
- Strongly first order electroweak phase transition induced by primordial hypermagnetic fields
- Electroweak Phase Transition in the MSSM: 4-Dimensional Lattice Simulations
- First-order cosmological phase transitions in the radiation dominated era
- Effect of reheating on electroweak baryogenesis
- Fermion scattering off electroweak phase transition kink walls with hypermagnetic fields
- Development of the electroweak phase transition and baryogenesis
- Can the Quark-Gluon Plasma in the Early Universe be supercooled?
- Axially asymmetric fermion scattering off electroweak phase transition bubble walls with hypermagnetic fields
- Nucleosynthesis Constraints on Defect-Mediated Electroweak Baryogenesis
- Effect of pre-existing baryon inhomogeneities on the dynamics of quark-hadron transition
Cited by in corpus (23)
- Physics, Astrophysics and Cosmology with Gravitational Waves
- Primordial Nucleosynthesis: from precision cosmology to fundamental physics
- Electroweak Baryogenesis and New TeV Fermions
- Velocity of electroweak bubble walls
- Bubble nucleation and growth in very strong cosmological phase transitions
- Hydrodynamics of phase transition fronts and the speed of sound in the plasma
- Detonations and deflagrations in cosmological phase transitions
- Supercooling and phase coexistence in cosmological phase transitions
- Spherical and non-spherical bubbles in cosmological phase transitions
- Gravitational waves from deflagration bubbles in first-order phase transitions
- Inhomogeneous Big Bang Nucleosynthesis Revisited
- Friction forces on phase transition fronts
- Stability of cosmological deflagration fronts
- Stability of cosmological detonation fronts
- Big Bang Nucleosynthesis Constraint on Baryonic Isocurvature Perturbations
- Lower bound on the electroweak wall velocity from hydrodynamic instability
- Analytic approach to the motion of cosmological phase transition fronts
- Bubble nucleation and growth in slow cosmological phase transitions
- Dark energy from coexistence of phases
- Transition rate and gravitational wave spectrum from first-order QCD phase transitions
- Bubble wall correlations in cosmological phase transitions
- Diffusion coefficients and constraints on hadronic inhomogeneities in the early universe
- Decay of baryon inhomogeneities in an expanding universe