Electroweak baryogenesis from temperature-varying couplings

  • Sebastian A. R. Ellis
  • Seyda IpekEmail author
  • Graham White
Open Access
Regular Article - Theoretical Physics


The fundamental couplings of the Standard Model are known to vary as a function of energy scale through the Renormalisation Group (RG), and have been measured at the electroweak scale at colliders. However, the variation of the couplings as a function of temperature need not be the same, raising the possibility that couplings in the early universe were not at the values predicted by RG evolution. We study how such temperature-variance of fundamental gauge couplings can aid the production of a baryon asymmetry in the universe through electroweak baryogenesis. We do so in the context of the Standard Model augmented by higher-dimensional operators up to dimension 6.


Beyond Standard Model CP violation Thermal Field Theory 


Open Access

This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.


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Copyright information

© The Author(s) 2019

Authors and Affiliations

  1. 1.SLAC National Accelerator LaboratoryMenlo ParkU.S.A.
  2. 2.Department of Physics and AstronomyUniversity of CaliforniaIrvineU.S.A.
  3. 3.TRIUMF Theory GroupVancouverCanada

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