Electroweak-Skyrmion as Asymmetric Dark Matter

TL;DR

This paper proposes that Electroweak-Skyrmions, solitonic configurations of the Higgs and gauge fields, can serve as asymmetric dark matter, linking their relic abundance to the baryon asymmetry via sphaleron-like processes.

Contribution

It introduces a novel scenario where Electroweak-Skyrmions are identified as dark matter, connecting their relic density to baryon asymmetry through a specific mechanism.

Findings

The model can explain the observed dark matter to baryon ratio.

Parameter choices are consistent with current experimental constraints.

Electroweak-Skyrmions can be viable asymmetric dark matter candidates.

Abstract

We propose a scenario that the Electroweak-Skyrmion, a solitonic object made of the Higgs field and the electroweak gauge fields, is identified as an asymmetric dark matter. In this scenario, the relic abundance of the dark matter is related to the baryon asymmetry of the Universe through a sphaleron-like process. We show that the observed ratio of dark matter abundance to the baryon asymmetry can be explained by this scenario with an appropriate choice of model parameters that is allowed by currently available experimental constraints.