Two-Step Electroweak Baryogenesis
High Energy Physics - Phenomenology
2016-01-27 v1 High Energy Physics - Experiment
Nuclear Experiment
Nuclear Theory
Abstract
We analyze electroweak baryogenesis during a two-step electroweak symmetry breaking transition, wherein the baryon asymmetry is generated during the first step and preserved during the second. Focusing on the dynamics of CP-violation required for asymmetry generation, we discuss general considerations for successful two-step baryogenesis. Using a concrete model realization, we illustrate in detail the viability of this scenario and the implications for present and future electric dipole moment (EDM) searches. We find that CP-violation associated with a partially excluded sector may yield the observed baryon asymmetry while evading present and future EDM constraints.
Cite
@article{arxiv.1508.05404,
title = {Two-Step Electroweak Baryogenesis},
author = {Satoru Inoue and Grigory Ovanesyan and Michael J. Ramsey-Musolf},
journal= {arXiv preprint arXiv:1508.05404},
year = {2016}
}
Comments
20 pages, 11 figures