
TL;DR
This paper reviews theories explaining the origin of matter in the early Universe, focusing on models extending the standard model of particle physics that could be tested experimentally and address neutrino masses.
Contribution
It provides a comprehensive overview of unified models for matter origin, emphasizing those with potential experimental verification and connections to neutrino physics.
Findings
Highlights models that unify matter-antimatter asymmetry and dark matter
Discusses extensions of the standard model addressing neutrino masses
Identifies promising theories testable in upcoming experiments
Abstract
The understanding of the physical processes that lead to the origin of matter in the early Universe, creating both an excess of matter over anti-matter that survived until the present and a dark matter component, is one of the most fascinating challenges in modern science. The problem cannot be addressed within our current description of fundamental physics and, therefore, it currently provides a very strong evidence of new physics. Solutions can either reside in a modification of the standard model of elementary particle physics or in a modification of the way we describe gravity, based on general relativity, or at the interface of both. We will mainly discuss the first class of solutions. Traditionally, models that separately explain either the matter-antimatter asymmetry of the Universe or dark matter have been proposed. However, in the last years there has also been an accreted…
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