English

Axiogenesis from $SU(2)_R$ phase transition

High Energy Physics - Phenomenology 2021-12-24 v3

Abstract

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)RSU(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)RSU(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.

Keywords

Cite

@article{arxiv.2107.09679,
  title  = {Axiogenesis from $SU(2)_R$ phase transition},
  author = {Keisuke Harigaya and Isaac R. Wang},
  journal= {arXiv preprint arXiv:2107.09679},
  year   = {2021}
}

Comments

30 pages, 1 figure

R2 v1 2026-06-24T04:22:26.120Z