Dark matter and Matter-Antimatter asymmetry in the Universe as two sides of the same coin

In this talk, in Lausanne, the world centre on baryogenesis, I want to discuss an alternative scenario when the baryogenesis is replaced by a charge separation process in which the global baryon number of the Universe remains zero. In this model the unobserved antibaryons come to comprise the dark matter in the form of dense  nuggets. This  model offers a very natural  explanation of  few   (naively unrelated) problems   in cosmology: the observed relation $\Omega_{\rm DM}\sim\Omega_{\rm visible}$, the observed asymmetry between matter and antimatter in the Universe, known as the ``baryogenesis" problem,  the so called "Solar Corona Mystery" to name just a few.  In this framework, both types of matter (dark and visible) have the same QCD origin, form at the same QCD epoch, and both proportional to one and the same dimensional parameter of the system, $\Lambda_{\rm QCD}$, which  explains how the two, naively distinct,  problems could be  intimately related, and could be solved simultaneously within the same framework.  The 80 years old "Solar Corona Mystery" also finds its natural resolution  in this framework. In this mechanism there is a fundamentally new mechanism for  the axion production with drastically different spectral properties. 

 Few recent papers on the subject covering formation mechanism at the QCD transition, the "Solar Corona Mystery" and the axions: 
 

1. ``Axion quark nugget dark matter model: Size distribution and survival pattern", PRD 2019,
 arXiv:1903.05090 [hep-ph]
2. ``Solar Corona Heating by the Axion Quark Nugget Dark Matter,'', PRD 2018
 arXiv:1805.01897 [astro-ph.SR],  written in collaboration with astro people
3. "New mechanism producing axions and how CAST can discover them", PRD 2018
arxiv:1805.05184[hep-ph], written in collaboration with particle physics experimentalists.

https://www.phas.ubc.ca/users/ariel-zhitnitsky