Axiogenesis from SU(2)R phase transition

The baryon asymmetry of the universe may be explained by rotations of the QCD axion in field space and baryon number violating processes. We consider the minimal extension of the Standard Model by a non-Abelian gauge interaction, SU(2)(R), whose sphaleron process violates baryon number. Assuming that axion dark matter is also created from the axion rotation by the kinetic misalignment mechanism, the mass scale of the SU(2)(R) gauge boson is fixed as a function of the QCD axion decay constant, and vise versa. Significant portion of the parameter space has already been excluded by new gauge boson searches, and the high-luminocity LHC will further probe the viable parameter space.

Automated summary

The baryon asymmetry of the universe is explained by rotations of the QCD axion in field space and baryon number violating processes in the minimal extension of the Standard Model by a non-Abelian gauge interaction, SU(2)(R). The mass scale of the SU(2)(R) gauge boson is fixed as a function of the QCD axion decay constant, with a significant portion of the parameter space excluded by new gauge boson searches. The high-luminocity LHC will further probe the viable parameter space.