English

Baryogenesis within the two-Higgs-doublet model in the Electroweak scale

High Energy Physics - Phenomenology 2014-05-27 v2

Abstract

The conventional baryogenesis mechanism is based on the one Higgs doublet within the standard model, at the electroweak scale T100GeVT\sim 100 GeV. In this model the strong first order phase transition due to the spontaneous symmetry breaking imposes the folowing condition on the mass of the Higgs field: mH40GeVm_H\lesssim 40 GeV, which is contrary to the recently observed value mH126GeVm_H\simeq 126 GeV. In this paper we propose a baryogenesis mechanism within a two-Higgs-doublet model in which the phase transition occurs in one stage. This model is consistent with the observed mass of the Higgs. We obtain the true vacuum bubble wall velocity and thickness in this model. Then, we use nonlocal baryogenesis mechanism in which the interaction of fermions with the boundary of the expanding bubbles leads to CP violation and sphaleron mediated baryogenesis.

Keywords

Cite

@article{arxiv.1308.3767,
  title  = {Baryogenesis within the two-Higgs-doublet model in the Electroweak scale},
  author = {M. Ahmadvand},
  journal= {arXiv preprint arXiv:1308.3767},
  year   = {2014}
}

Comments

10 pages, 3 figures, To be published in Int. J. Mod. Phys. A

R2 v1 2026-06-22T01:10:46.321Z