The Serendipity of Electroweak Baryogenesis
arXiv:1807.11507 · doi:10.1098/rsta.2017.0124
Abstract
The origin of the matter antimatter asymmetry of the universe remains unexplained in the Standard Model of particle physics. The origin of the flavour structure is another major puzzle of the theory. In this article, we report on recent work attempting to link the two themes through the appealing framework of electroweak baryogenesis. We show that Yukawa couplings of Standard Model fermions can be the source of CP-violation for electroweak baryogenesis if they vary at the same time as the Higgs is acquiring its vacuum expectation value, offering new avenues for electroweak baryogenesis. The advantage of this approach is that it circumvents the usual severe bounds from Electric Dipole moments. These ideas apply if the mechanism explaining the flavour structure of the Standard Model is connected to electroweak symmetry breaking, as motivated for instance in Randall-Sundrum or Composite Higgs models. We compute the resulting baryon asymmetry for different configurations of the Yukawa coupling variation across the bubble wall, and show that it can naturally be of the right order.
arXiv commentArXiv version of the contribution to the "Higgs cosmology" issue published in Philosophical Transactions A, associated with the Theo Murphy meeting which took place at the Royal Society Kavli Centre at Chicheley Hall on March 27-28 2017. 12 pages, 6 figures
References in corpus (29)
- A Large Mass Hierarchy from a Small Extra Dimension
- Modulus Stabilization with Bulk Fields
- Bulk Fields and Supersymmetry in a Slice of AdS
- Science with the space-based interferometer eLISA. II: Gravitational waves from cosmological phase transitions
- Standard Model CP-violation and Baryon asymmetry
- Fermion Masses, Mixings and Proton Decay in a Randall-Sundrum Model
- Baryogenesis in the Two-Higgs Doublet Model
- Electroweak Phase Transition in Two Higgs Doublet Models
- Electroweak Baryogenesis in Two Higgs Doublet Models and B meson anomalies
- Electroweak baryogenesis and low energy supersymmetry
- Improved Results in Supersymmetric Electroweak Baryogenesis
- Supersymmetric CP-violating Currents and Electroweak Baryogenesis
- A Second Higgs Doublet in the Early Universe: Baryogenesis and Gravitational Waves
- Dynamics of Two Higgs Doublet CP Violation and Baryogenesis at the Electroweak Phase Transition
- The Baryon asymmetry in the Standard Model with a low cut-off
- Electroweak Baryogenesis in Non-minimal Composite Higgs Models
- MSSM Electroweak Baryogenesis and Flavour Mixing in Transport Equations
- Bino-driven Electroweak Baryogenesis with highly suppressed Electric Dipole Moments
- MSSM Baryogenesis and Electric Dipole Moments: An Update on the Phenomenology
- Baryogenesis from Strong CP Violation and the QCD Axion
- Top transport in electroweak baryogenesis
- Supersymmetric Electroweak Baryogenesis Via Resonant Sfermion Sources
- Yukawa Interactions and Supersymmetric Electroweak Baryogenesis
- Flavor Cosmology: Dynamical Yukawas in the Froggatt-Nielsen Mechanism
- CP-violation for Electroweak Baryogenesis from Dynamical CKM Matrix
- Creating the Fermion Mass Hierarchies with Multiple Higgs Bosons
- Baryogenesis from the Kobayashi-Maskawa Phase
- Baryogenesis in the two doublet and inert singlet extension of the Standard Model
- Cosmological evolution of Yukawa couplings: the 5D perspective