Baryogenesis via the CKM Matrix with Minimal Flavor Violation
Innes Bigaran, Gordan Krnjaic, Kevin Langhoff, Huangyu Xiao
hep-ph, astro-ph.CO
Submitted: 2026-08-05
Updated: 2026-08-11
Comments: 6 pages, 2 figures + supplementary material
License: http://creativecommons.org/licenses/by/4.0/
The gist: It is often claimed Standard Model CP violation is insufficient for baryogenesis.
Terminology
Abstract
It is often claimed Standard Model CP violation is insufficient for baryogenesis. We present a counterexample using minimal flavor violation (MFV) in which all CP-violating effects arise from the Cabibbo-Kobayashi-Maskawa (CKM) matrix. Our scenario involves a leptoquark field with MFV-preserving interactions whose decays to Standard Model particles yield the observed baryon asymmetry in the early universe. Unlike previous efforts to realize baryogenesis through the CP violation of the CKM matrix, our scenario does not require any time-variation of model parameters.
Sources
- Planck 2018 results. VI. Cosmological parameters
- Can the Baryon Asymmetry Arise From Initial Conditions?
- Can baryon asymmetry be explained by a large initial value before inflation?
- The Standard Model at 200 GeV
- Standard Model CP-violation and Baryon asymmetry
- Standard Model CP-violation and Baryon asymmetry Part I: Zero Temperature
- Standard Model CP-violation and Baryon asymmetry Part II: Finite Temperature
- Electroweak Baryogenesis and Standard Model CP Violation
- Baryogenesis from the Kobayashi-Maskawa Phase
- Split Fermions Baryogenesis from the Kobayashi-Maskawa Phase
- Revisiting Electroweak Phase Transition with Varying Yukawa Coupling Constants
- Baryogenesis and Dark Matter from $B$ Mesons
- Baryogenesis from B Meson Oscillations
- Making the Universe at 20 MeV
- Mesogenesis through the Ephemeral Dark Decay of Beauty
- Universal Unitarity Triangle and Physics Beyond the Standard Model
- Minimal Flavour Violation: an effective field theory approach
- CP violation and Leptogenesis in models with Minimal Lepton Flavour Violation
- Another Look at Minimal Lepton Flavour Violation, l_i -> l_j gamma, Leptogenesis, and the Ratio M_nu/ Lambda_LFV
- Physics of leptoquarks in precision experiments and at particle colliders
Related papers
- Classification of g-modes for neutron stars with a strong transition: Novel universal relation including slow stable hybrid stars
- Higgsino Dark Matter Interpretation of the LUX-ZEPLIN 248 keV Nuclear-Recoil Event
- A Unified Bogoliubov Approach to Primordial Gravitational Waves: From Inflation to Reheating
- Probing Memory-Burdened Primordial Black Holes with High-Energy Neutrinos
- Enhanced Dark Matter Quantum Sensing via Phase-Space Geometric Interferometry
- Axions as Dark Matter, Dark Energy, and Dark Radiation