Dark origins of matter-antimatter asymmetry
High Energy Physics - Phenomenology
2020-03-05 v1 Cosmology and Nongalactic Astrophysics
Abstract
In a non-minimal Higgs framework, we present a novel mechanism in which the CP violating dark particles only interact with the SM through the gauge bosons, primarily the boson. Such -portal dark CP violation is realised in the regions of the parameter space where Higgs-mediated (co)annihilation processes are sub-dominant and have negligible contributions to the DM relic density. We show that such -portal CP violating DM can still thermalise and satisfy all experimental and observational bounds and discuss implications of such phenomena for electroweak baryogenesis.
Cite
@article{arxiv.2003.02141,
title = {Dark origins of matter-antimatter asymmetry},
author = {Venus Keus},
journal= {arXiv preprint arXiv:2003.02141},
year = {2020}
}
Comments
15 pages, 8 figures. arXiv admin note: substantial text overlap with arXiv:1909.09234