Baryogenesis from a CP-violating inflation

Abstract

We introduce the novel phenomena of CP-violating inflation in the frameworks of a 3-Higgs doublet model where the inflaton doublets have a non-minimal coupling to gravity. We allow for this coupling to be complex, thereby introducing CP-violation - a necessary source of the baryon asymmetry - in the inflaton couplings. We investigate the inflationary dynamics of such a framework and the inflaton decay in the reheating phase. We discuss how the CP-violation of the model is imprinted on the particle asymmetries.

Comments: 10 pages, 5 figures, Contributions to the BSM-2021 conference proceedings. arXiv admin note: text overlap with arXiv:2102.07777