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arXiv · 2603.15585

QCD-driven dark matter: AQNs formation and observational tests

Ludovic Van Waerbeke
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Abstract

The nature of dark matter remains a central problem in cosmology. A compelling possibility is that dark matter is macroscopic, consisting of composite objects formed in the early Universe. We introduce the QCD-AQN framework, a well-motivated scenario in which dark matter is composed of dense aggregates of quark and antiquark matter stabilised by axion domain walls. The framework proposes a unified explanation for both dark matter and the observed matter-antimatter asymmetry. Particular emphasis is placed on existing observational constraints and on observational tests. Finally, we explore a possible QCD-based scenario for dark energy.

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Ludovic Van Waerbeke. 2026-03-16. QCD-driven dark matter: AQNs formation and observational tests. https://arxiv.org/abs/2603.15585

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